Indonesian Journal of Chemistry最新文献_第7页

Fabrication of Dye Sensitized Solar Cell (DSSC) Using Combination of Dyes Extracted from Curcuma (Curcuma xanthorrhiza) Rhizome and Binahong (Anredera cordifolia) Leaf with Treatment in pH of the Extraction 姜黄提取物复合染料制备染料敏化太阳能电池(DSSC)根茎和红枣(Anredera cordifolia)叶片浸提液的pH值

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.77860

Pirim Setiarso, Rifanda Viantiano Harsono, Nita Kusumawati

{"title":"Fabrication of Dye Sensitized Solar Cell (DSSC) Using Combination of Dyes Extracted from Curcuma (Curcuma xanthorrhiza) Rhizome and Binahong (Anredera cordifolia) Leaf with Treatment in pH of the Extraction","authors":"Pirim Setiarso, Rifanda Viantiano Harsono, Nita Kusumawati","doi":"10.22146/ijc.77860","DOIUrl":"https://doi.org/10.22146/ijc.77860","url":null,"abstract":"Research on Dye Sensitized Solar Cell (DSSC) fabrication has been carried out using a combination of dyes extracted from Curcuma xanthorrhiza and Anredera cordifolia. Each dye was extracted by treating pH 1 to 13 and then characterized using UV-Vis spectroscopy. The band gap energy was determined by using the cyclic voltammetric method. The UV-Vis spectrum of C. xanthorrhiza extract reveals the presence of curcumin components. The UV-Vis spectrum of A. cordifolia indicates the presence of chlorophyll and a trace of anthocyanin. C. xanthorrhiza extract had the least band gap energy in the acid phase, pH 1, at 0.66 eV, and the alkaline phase, pH 13, at 0.43 eV. The minimum band gap energy of A. cordifolia extract was determined to be 0.96 eV in the acid phase, pH 7, and 0.65 eV in the alkaline phase, pH 12. When A. cordifolia and C. xanthorrhiza extracts were mixed, with the best composition ratios being pH 7:pH 1 (3:2 ≈ pH 1.7) and pH 12:pH 13 (1:4 ≈ pH 12.6). The composition of this mixture was applied to the DSSC resulting in an efficiency of 0.096 and 0.147%, respectively.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135063569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Synthesis, Characterization, and Magnetic Properties of Iron(II) Complex with 2,6-Bis(pyrazol-3-yl)pyridine Ligand and Tetracyanonickelate Anion 与2,6-双(吡唑-3-基)吡啶配体和四氰酸盐阴离子配合的铁(II)的合成、表征和磁性能

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.81625

Fitriani Fitriani, Irma Mulyani, Djulia Onggo, Kristian Handoyo Sugiyarto, Ashis Bhattacharjee, Hiroki Akutsu, Anas Santria

{"title":"Synthesis, Characterization, and Magnetic Properties of Iron(II) Complex with 2,6-Bis(pyrazol-3-yl)pyridine Ligand and Tetracyanonickelate Anion","authors":"Fitriani Fitriani, Irma Mulyani, Djulia Onggo, Kristian Handoyo Sugiyarto, Ashis Bhattacharjee, Hiroki Akutsu, Anas Santria","doi":"10.22146/ijc.81625","DOIUrl":"https://doi.org/10.22146/ijc.81625","url":null,"abstract":"The complex containing iron(II), 2,6-bis(pyrazol-3-yl)pyridine (3-bpp) as ligand, and tetracyanonickelate as counter anion has been synthesized and characterized. The characterization data suggest the corresponding formula of [Fe(3-bpp)2][Ni(CN)4]·4H2O. Meanwhile, the SEM–EDX analysis image confirms the existence of all elements contained in the complex except the hydrogen atom. The infrared spectra exhibit vibration bands of the functional groups of 3-bpp ligand and [Ni(CN)4]−1 anion. From magnetic property measurement, the complex's molar magnetic susceptibility (XMT) value is 2.65 emu mol−1 K at 300 K, which contains about 75% high-spin state of the Fe(II) complex. Upon lowering the temperature, the XMT value gradually decreases around 1.37 emu mol−1 K at 13 K. It decreases sharply to about 0.73 emu mol−1 K at 2 K. These values reveal that Fe(II) complex is in the low-spin (LS) state. As a result, the complex exhibited spin-crossover characteristics of gradual transition without thermal hysteresis, and the transition temperature occurred below room temperature with a transition temperature (T1/2) close to 140 K. The spin crossover property of the complex is supported by a thermochromic reversible color change from red-brown at room temperature to dark brown on cooling in liquid nitrogen associated with the high-spin to low-spin transition.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135064189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Sustainable synthesis, eco-safe approach efficiency and DFT study of novel 5,6,7,8-Tetrahyroquinazolin-2(1H)-one derivatives as antioxidant reagents 新型5,6,7,8-四氢喹唑啉-2(1H)- 1衍生物的可持续合成、生态安全方法效率和DFT研究

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.83583

Mohammed Abed Kadhim, A. Fahmy, E. K. M. Zangana, A. I. Hassaballah, S. Rizk

{"title":"A Sustainable synthesis, eco-safe approach efficiency and DFT study of novel 5,6,7,8-Tetrahyroquinazolin-2(1H)-one derivatives as antioxidant reagents","authors":"Mohammed Abed Kadhim, A. Fahmy, E. K. M. Zangana, A. I. Hassaballah, S. Rizk","doi":"10.22146/ijc.83583","DOIUrl":"https://doi.org/10.22146/ijc.83583","url":null,"abstract":"5,6,7,8-Tetrahydroquinazolin-2-(thio)-ones (THQ) fits the class of N-heterocycles as a structural core in numerous bioactive compounds. They promptly extended previous decades. They were significantly recognized in combinatorial chemistry and materials science to determine the drug discovery, antioxidants, and pharmaceuticals fields. In the present work, one-pot multicomponent sustainable synthesis of THQ with easily accessible starting materials, i.e., cyclohexanone, different aromatic aldehydes and (thio)urea, has been performed to determine the proposed Biginelli mechanism that is supported by DFT. It is found that the THQs are synthesized by a mechano-chemical (grinding) tool to achieve a yield of 85.2% within 3.5 min, i.e., YE (% yield/time) 24.34 differs from the conventional method in which lower % yield (YE = 0.72) of THQ was achieved. This confirmed that in the green chemistry principle, the determination of % yield according to saving reaction time must be considered. Moreover, DFT-based antioxidant properties of the THQ were also studied in which the most potent antioxidant compounds were 7b > 6d > 2f. Softness (σ, eV−1) and hardness (η, eV mol−1) can approve the soft molecule that stays more reactive as a result of decreasing the energy gap along heterocyclic with values 0.1491 > 0.1300 > 0.1168 eV−1 one-to-one with the efficiency of antioxidant.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43730417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnetic Solid Phase Extraction for Determination of Dyes in Food and Water Samples 磁性固相萃取法测定食品和水中染料

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.80885

R. F. Abbas, Mohammed Jasim Mohammed Hassan, A. Rheima

引用次数: 1

Characterization of Botanical Parts of Erythrina crista-galli Using Pyrolysis-Gas Chromatography/Mass Spectrometry and Multivariate Analysis 热裂解-气相色谱/质谱联用及多元分析法鉴定鸡刺桐植物部位

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.77325

Abd. Wahid Rizaldi Akili, A. Hardianto, J. Latip, Maya Ismiyati, T. Herlina

{"title":"Characterization of Botanical Parts of Erythrina crista-galli Using Pyrolysis-Gas Chromatography/Mass Spectrometry and Multivariate Analysis","authors":"Abd. Wahid Rizaldi Akili, A. Hardianto, J. Latip, Maya Ismiyati, T. Herlina","doi":"10.22146/ijc.77325","DOIUrl":"https://doi.org/10.22146/ijc.77325","url":null,"abstract":"Erythrina crista-galli is commonly used in folk medicines for its pharmacological properties which are associated with the bioactive compounds. Profiling botanical parts of E. crista-galli is an exciting topic and essential to uncover the similarity and clustering based on their chemical content. The botanical parts of E. crista-galli, including bark, flowers, leaves, roots, and twigs, were subjected to pyrolysis-gas chromatography/mass spectrometry. The samples were pyrolyzed using a multi-shot pyrolyzer. The relative abundance of the pyrolysate was subjected to multivariate analysis, i.e., principal component analysis (PCA) and hierarchical cluster analysis (HCA). The scree plot for PC.1, PC. 2, and PC. 3 accounted for 36.5%, 27.2%, and 20.3%, respectively. Together, the first three PCs explain 84% of the total variance. The PCA allows characterizing the roots of E. crista-galli by the highest relative abundance of lignin G, followed by the twigs, bark, and leaves, while the flowers had the least relative abundance of lignin G. The HCA allows to cluster the botanical parts of E. crista-galli into three different clusters based on their chemical component similarity, i.e., flowers-leaves, twigs, and roots-bark. In conclusion, Py-GC/MS analysis can be used in conjunction with multivariate data analysis to characterize the botanical parts of E. crista-galli.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47440406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioanalytical Method Validation of Metformin Hydrochloride in Human Plasma by HPLC-UV for Preliminary Population-Based Pharmacokinetic Modeling Study 人血浆中盐酸二甲双胍的HPLC-UV生物分析方法验证及初步人群药动学模型研究

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.77903

Dimas Adhi Pradana, E. Kristin, A. Nugroho, D. Nugrahaningsih, M. Mustofa, A. Wibowo

{"title":"Bioanalytical Method Validation of Metformin Hydrochloride in Human Plasma by HPLC-UV for Preliminary Population-Based Pharmacokinetic Modeling Study","authors":"Dimas Adhi Pradana, E. Kristin, A. Nugroho, D. Nugrahaningsih, M. Mustofa, A. Wibowo","doi":"10.22146/ijc.77903","DOIUrl":"https://doi.org/10.22146/ijc.77903","url":null,"abstract":"This study aims to validate the method for measuring metformin hydrochloride plasma concentrations using High-Performance Liquid Chromatography (HPLC). This research performed chromatography on a 250 mm 4.6 mm 5 µm purosphere® Star RP-18 column at ambient temperature with a UV detector system at 233 nm. The mobile phase components were 70% phosphate buffer (KH2PO4) (10 mM), sodium dodecyl sulfate (0.3 mM), and 30% acetonitrile. It was pumped at an isocratic flow rate of 1.2 mL/min. Metformin HCl and ranitidine HCl (internal standard) were extracted using acetonitrile. The calibration curve was linear (R2 = 0.9998) in the 0.18–6 µg/mL concentration range. The lower limit of quantification (LLOQ) was 0.18 µg/mL. For intraday accuracy and precision, the percent difference and the coefficient of variation were less than 4 and 7%, and for inter-day were lower than 8 and 6%. The recovery average was 100.96%. The short-term plasma stability test was stable at 24 h at ambient temperature, and the long-term stability test was steady for 30 d at −20 °C. It was also stable after three freeze-thaw cycles. The method meets selectivity, sensitivity, linearity, accuracy, precision, recovery, carryover, and stability requirements and can be applied to population-based pharmacokinetic modeling.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68323021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical Properties of Polyvinyl Alcohol/Chitosan Films with the Addition of Anthocyanin Extract from Butterfly Pea for Food Packaging Applications 添加豌豆花青素提取物的聚乙烯醇/壳聚糖薄膜的物理性能

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.80946

S. Khanifah, Alda Dwi Karina Legowo, S. Sholihun, A. Nugraheni

{"title":"Physical Properties of Polyvinyl Alcohol/Chitosan Films with the Addition of Anthocyanin Extract from Butterfly Pea for Food Packaging Applications","authors":"S. Khanifah, Alda Dwi Karina Legowo, S. Sholihun, A. Nugraheni","doi":"10.22146/ijc.80946","DOIUrl":"https://doi.org/10.22146/ijc.80946","url":null,"abstract":"Composites of polyvinyl alcohol (PVA) and chitosan (CH) polymers, with the addition of anthocyanin (AN) obtained from the butterfly pea flower, were prepared using drop-casting. The composites were made by adding different concentrations of 5–40% anthocyanin with 5 wt.% PVA and 2 wt.% CH solutions (weight ratio of PVA/CH is 80:20). These polymers solution was mixed at 80 °C and dried using the drop-casting method at 25 °C for 48 h. The composites were characterized using a scanning electron microscope (SEM), Fourier-transform infrared (FTIR), ultraviolet-visible (UV–vis spectroscopy), contact angle, antibacterial properties, and food packaging applications. The morphology obtained using an SEM showed that the PVA/CH surface with AN and glycerol was smoother than that of PVA/CH. The increased absorption at a wavelength of 650–700 nm from UV-vis spectroscopy confirmed the success addition of AN. The contact angles of PVA/CH/AN and PVA/CH/GS/AN films were 15°–66°, which showed that the films were hydrophilic. The simple antibacterial test with Escherichia coli and Staphylococcus aureus showed 16 mm inhibition zone by adding AN. The test results of these characteristics show the potential for using PVA/CH/AN and PVA/CH/GS/AN composite film to be used as an excellent development food packaging material.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46424597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Addition of NaCl Salt on Extraction of Essential Oil from Lemongrass Leaves by Microwave Hydro-Distillation Method NaCl盐对微波加氢蒸馏法提取柠檬叶精油的影响

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.78919

F. Suryanti, L. Qadariyah, M. Mahfud

{"title":"Effect of Addition of NaCl Salt on Extraction of Essential Oil from Lemongrass Leaves by Microwave Hydro-Distillation Method","authors":"F. Suryanti, L. Qadariyah, M. Mahfud","doi":"10.22146/ijc.78919","DOIUrl":"https://doi.org/10.22146/ijc.78919","url":null,"abstract":"Essential oils are compounds extracted from plants and obtained by distillation. Indonesia has many kinds of plant commodities for essential oil production. Among the essential oils that have not been developed in Indonesia is citronella oil which can be extracted from the lemongrass plant this research, we develop Microwave Hydro-Distillation (MHD) method has several advantages over conventional distillation methods: shorter time, higher oil quality and yield. This research proposes to extract citronella oil from lemongrass leaves using the MHD method using aquadest and NaCl solution addition. Operating variables are extraction time (20–180 min), material size (0.5, 1.0, and 1.5 cm), feed-to-solvent ratio (0.1; 0.15; and 0.2 g/mL), and microwave power (300, 450, and 600 watts). The essential oil results are analyzed by GC-MS analysis, specific gravity, refractive index, and solubility. The results showed that it increased with extraction time followed by almost constant conditions, tended to decrease with increasing feed-to-solvent ratio, and increased yield with increasing microwave power. The results from the GC-MS analysis, the active substance content of geraniol was 46.61% and citronellal 5.62%. Additional salt in this method is a green and clean essential oil extraction.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49101897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Synthesis and Antidiabetic Evaluation of N’-Benzylidenebenzohydrazide Derivatives by In Silico Studies N ' -苄基苯并肼衍生物的合成及其抗糖尿病作用的硅研究

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.82073

Yusuf Syaril Alam, P. Pudjiastuti, Saipul Maulana, Nur Rahmayanti Afifah, F. Martak, A. Fadlan, T. Wahyuni, S. Arief

{"title":"Synthesis and Antidiabetic Evaluation of N’-Benzylidenebenzohydrazide Derivatives by In Silico Studies","authors":"Yusuf Syaril Alam, P. Pudjiastuti, Saipul Maulana, Nur Rahmayanti Afifah, F. Martak, A. Fadlan, T. Wahyuni, S. Arief","doi":"10.22146/ijc.82073","DOIUrl":"https://doi.org/10.22146/ijc.82073","url":null,"abstract":"Two new of N’-benzylidenebenzohydrazide (NBB) derivatives were successfully synthesized and yielded 50–58%. FTIR, ESI-MS, 1H-NMR and 13C-NMR were used to investigate the characteristic of NBB derivates. The structure and relationship of NBB derivatives into α-glucosidase and α-amylase as good targets for diabetes treatment were evaluated using in silico screening. Molecular Mechanics-Poisson Boltzmann/Generalized Born Surface Area (MM-PB/GBSA) was used to calculate the free binding energy (ΔGbind (MM-GBSA)) of NBB to α-glucosidase and α-amylase receptors showed that the results of −0.45 and −20.79 kcal/mol respectively. In the ortho position, NBB derivatives exhibited electron donating groups (EDG like -OCH3, -OH and -Cl with binding free energies of −21.94, −6.71 and 21.94, respectively, and acarbose, a native ligand energy of 32.62 kcal/mol. In addition, the binding free energy of N-2-(-OCH3, -OH and -Cl)-NBB to the α-amylase receptor showed the number of −39.33, −43.96, −42.81, respectively and −46.51 kcal/mol in comparing with a native ligand. As a result, it was found that all the NBB derivatives were able to interact with several amino acids in the α-glucosidase cavity as well as the native ones, including Ala281, Asp282, and Asp616. NBB and native ligand showed similar interaction between α-amylase with Gly110 amino acid residue.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48544270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Design Valve in Flow Injection System for the Determination of Pb(II) in Biological and Environmental Samples 生物和环境样品中铅(II)的流动注射系统新型阀设计

IF 0.9

Indonesian Journal of Chemistry Pub Date : 2023-08-15 DOI: 10.22146/ijc.83367

T. Jassim, Raisan Kadhim Taresh

{"title":"New Design Valve in Flow Injection System for the Determination of Pb(II) in Biological and Environmental Samples","authors":"T. Jassim, Raisan Kadhim Taresh","doi":"10.22146/ijc.83367","DOIUrl":"https://doi.org/10.22146/ijc.83367","url":null,"abstract":"A strategy to design an injection valve for a streamlined flow injection technique is described as speed and low-cost materials available in the environment for the determination of Pb(II) ion using the organic reagent 4-((4-methoxyphenyl)diazenyl)benzene-1,3-diol at a wavelength of 498 nm. The scope of the study is to find the optimal conditions, including the flow rate of the carrier, the dispersion coefficient, the length of the reaction coil, and the calibration drawing. The results showed that the optimum length of the reaction coil is 20 cm, and the optimum flow rate is 9.1 mL/min, which is equivalent to the pumping rate of 70 F/min. The range of linearity of the study was revealed by a calibration curve of 0.5–27 mg/L, slope = 1.507, correlation coefficient = 0.9995, the limit of quantitative (LOQ) = 0.088 mg/L, and limit of detection (LOD) = 0.026 mg/L. The system under study has a characteristic efficiency. The dispersion coefficient was calculated for concentrations of 10–15 mg/L Pb(II) ion. Furthermore, the accuracy of the flow injection technique in the estimation process was studied and compared with the Flame Atomic Absorption Spectroscopy (FAAS) technique.","PeriodicalId":13515,"journal":{"name":"Indonesian Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48637668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0