Analytical Sciences最新文献_第9页

Study of reactive dyes and their hydrolyzed forms in a real trichromatic dyeing process by capillary electrophoresis with UV detection 利用毛细管电泳和紫外检测法研究实际三色染色过程中的活性染料及其水解形式。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-30 DOI: 10.1007/s44211-024-00600-z

Zijie Lu, Jiashun Xu, Zhongqi Xu, Yi Zhong, Zhiping Mao, Weidong Meng

{"title":"Study of reactive dyes and their hydrolyzed forms in a real trichromatic dyeing process by capillary electrophoresis with UV detection","authors":"Zijie Lu, Jiashun Xu, Zhongqi Xu, Yi Zhong, Zhiping Mao, Weidong Meng","doi":"10.1007/s44211-024-00600-z","DOIUrl":"10.1007/s44211-024-00600-z","url":null,"abstract":"<div><p>Detecting the concentration of reactive dyes and their hydrolyzed products is essential for controlling the dyeing process and is an important guide for upgrading and improving textile dyeing technology. In this study, capillary electrophoresis (CE) with UV detection was for the first time applied in a real trichromatic dyeing process to provide qualitative and quantitative determination of reactive dyes and their hydrolyzed forms. Here, three original reactive dyes (SES-Cl-red-195, SES-Cl-yellow-145, and SES-Cl-blue-194), their vinyl sulfone forms (VS-Cl-red-195, VS-Cl-yellow-145, and VS-Cl-blue-194), and complete hydrolyzed forms (HES-OH-red-195, HES-OH-yellow-145, and HES-OH-blue-194) could be baseline separated in our developed BGE comprised of 10.0 mol/L Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub>, 15% (V/V) ACN at pH 8.50 that adjusted by 0.50 mol/L H<sub>3</sub>BO<sub>3</sub>. The LODs (<i>S</i>/<i>N</i> = 3) of nine analytes ranged from 0.3 to 1.3 mg/L, and high sensitivities were achieved with UV detection. The RSDs of peak area and migration time were in the ranges of 1.4–3.8% and 0.39–1.29%, which indicated the CE methods were reliable for studying different dye forms in complex dye baths, and for evaluating dyeing process quality. Thus, the percentage of dye-uptake in single and trichromatic combination dyes was calculated based on the concentration of the original and their vinyl sulfone and hydrolyzed forms, and the result was consistent with the traditional UV–Vis method.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141174273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of absorption spectrophotometry of iron(III) in environmental water and sediments using NEDA and its application to the field 利用 NEDA 开发环境水和沉积物中铁(III)的吸收分光光度法及其实地应用。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-29 DOI: 10.1007/s44211-024-00598-4

Michiko Egawa, Shogo Sugahara, Keiya Miwa, Ja Yeong Park, Yukiko Senga, Yasushi Seike

{"title":"Development of absorption spectrophotometry of iron(III) in environmental water and sediments using NEDA and its application to the field","authors":"Michiko Egawa, Shogo Sugahara, Keiya Miwa, Ja Yeong Park, Yukiko Senga, Yasushi Seike","doi":"10.1007/s44211-024-00598-4","DOIUrl":"10.1007/s44211-024-00598-4","url":null,"abstract":"<div><p>In this study, we developed a simple method that enables iron(III) in environmental water to be directly determined via spectrophotometry. In water samples, iron(III) formed a yellowish complex with <i>N</i>-1-Naphthylethylenediamine dihydrochloride (NEDA) at pH 2.0–2.8, the maximum absorption wavelength of which was 462 nm. Detection sensitivity increased in the presence of chloride ions and remained constant for 2–24 h with 0.05–0.57 mol L<sup>−1</sup> chloride. Therefore, NEDA solution containing chloride ions was used as a chromogenic reagent for the determination of iron(III). The determination range for this method was 0.1–20 mgFe(III) L<sup>−1</sup> in a 5 cm glass cell. The developed method is highly selective for iron(III) and has been successfully applied to freshwater, brackish water, seawater, turbid water in rivers, as well as to riverbed and freshwater lake sediments. In addition, a combination of the proposed NEDA method and the 1,10-phenanthroline method enabled simultaneous determination of iron(III) and iron(II).</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two-step extraction for the evaluation of metal–organic framework impregnated materials 评估金属有机框架浸渍材料的两步萃取法。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-29 DOI: 10.1007/s44211-024-00608-5

Mizuki Mukai, Reetu Rani, Nao Iwanaga, Kentaro Saeki, Kei Toda, Shin-Ichi Ohira

{"title":"Two-step extraction for the evaluation of metal–organic framework impregnated materials","authors":"Mizuki Mukai, Reetu Rani, Nao Iwanaga, Kentaro Saeki, Kei Toda, Shin-Ichi Ohira","doi":"10.1007/s44211-024-00608-5","DOIUrl":"10.1007/s44211-024-00608-5","url":null,"abstract":"<div><p>Metal–organic frameworks (MOFs) are widely used for gas adsorption, separation, and sensing materials. In most cases, MOFs are not used in their crystal form but as impregnated materials because the fine crystals result in high-pressure drops. One key characteristic of MOF-impregnated materials is the amount of MOF in the material. This is evaluated using the wet digestion method; however, it is limited to determining only the metal content. Moreover, some metal, denoted as free metal, will not react with ligands to form MOFs. Additionally, it is crucial to determine the ligand amount, which cannot be determined using wet digestion. In the present study, a two-step extraction method for copper (II) benzene-1,3,5-tricarboxylate (Cu-BTC MOF) impregnated materials was developed to determine the MOF formed and free metals and ligands. Various solvents were applied to evaluate the extraction efficiencies. The results led to the selection of ethanol (EtOH) for extracting free Cu<sup>2+</sup> and BTC, while 0.3 M HNO<sub>3</sub> was chosen to extract MOF-formed Cu<sup>2+</sup> and BTC. The MOF-impregnated sample material was first extracted using EtOH and then 0.3 M HNO<sub>3</sub>. The Cu<sup>2+</sup> and BTC in the obtained extract solutions, as well as EtOH and HNO<sub>3</sub>, were analyzed using flame atomic absorption spectroscopy and high-performance liquid chromatography, respectively. In standard addition tests, free and MOF-formed Cu<sup>2+</sup> and BTC were quantitatively extracted from MOF-impregnated materials. The developed two-step analysis method was successfully applied to Cu-BTC-impregnated materials used in gas sensing.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of dissolved iodine measurements in seawater between inductively coupled plasma mass spectrometry and voltammetry 比较电感耦合等离子体质谱法和伏安法对海水中溶解碘的测量。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-28 DOI: 10.1007/s44211-024-00602-x

Yuhi Satoh, Yoshihito Ohtsuka

{"title":"Comparison of dissolved iodine measurements in seawater between inductively coupled plasma mass spectrometry and voltammetry","authors":"Yuhi Satoh, Yoshihito Ohtsuka","doi":"10.1007/s44211-024-00602-x","DOIUrl":"10.1007/s44211-024-00602-x","url":null,"abstract":"<div><p>Two analytical methods, inductively coupled plasma mass spectrometry (ICP-MS) combined with high-performance liquid chromatography (HPLC) and voltammetry (VM), for three chemical species of dissolved iodine (iodide, iodate, and total dissolved iodine: TDI) were compared for dozens of coastal seawater samples owing to the compatibility of data between both methods. The median differences in the measured concentrations of TDI, total inorganic dissolved iodine (TII, the sum of iodide and iodate), and iodate between ICP-MS and VM were equivalent to 9.2, 13, and 14%, respectively. These differences were within the ranges that could be explained by the repeated-measurement precision of each measurement method for TDI, TII, and iodate. The difference for iodide was 19%, which was larger than the value based on the repeated-measurement precision for both methods. This is considered to be caused by the chemical instability and lower concentrations of iodide compared to other iodine species in seawater, in addition to the heterogeneity of natural samples. Finally, both methods provided reasonable measurement values for the iodine concentration in natural seawater samples.</p><h3>Graphical abstract</h3><p>Comparison of dissolved iodine measurements in seawater between inductively coupled plasma mass spectrometry and voltammetry\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141157821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of an HPLC device with water/acetonitrile with NaCl mixed solution that induces a phase-separation multiphase flow as the eluent in the separation column 开发出一种高效液相色谱装置，采用水/乙腈加氯化钠混合溶液作为分离柱中的洗脱液，从而产生相分离多相流。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-26 DOI: 10.1007/s44211-024-00599-3

Ryuto Hirose, Takeshi Iharada, Kazuhiko Tsukagoshi

{"title":"Development of an HPLC device with water/acetonitrile with NaCl mixed solution that induces a phase-separation multiphase flow as the eluent in the separation column","authors":"Ryuto Hirose, Takeshi Iharada, Kazuhiko Tsukagoshi","doi":"10.1007/s44211-024-00599-3","DOIUrl":"10.1007/s44211-024-00599-3","url":null,"abstract":"<div><p>We developed a novel HPLC device where the phase-separation multiphase flow worked as the eluent in the separation column by using a water/acetonitrile/ethyl acetate triple mixed solution as a dual-phase-separation solution. Dual-phase-separation solutions form a phase-separation multiphase flow in a microscopic space. The new separation mechanism in the HPLC is called phase-separation mode. In this study, we used water and acetonitrile with NaCl mixed solution as a dual-phase-separation solution instead of the triple mixed solution. Octadecylsilyl (ODS)-modified particle- and porous silica particle-packed separation columns were united with the HPLC device for phase-separation mode caused by phase-separation multiphase flow. NA (1-naphthol) and NDS (2,6-naphthalenedisulfonic acid) were analyzed by the device as model sample. Using the water and acetonitrile with NaCl mixed solution at the solvent volume ratio of 5:5, NA and NDS were not separated on either column at 25 °C. On the other hand, they were separated with the order NDS and NA on the ODS column and separated with the order NA and NDS on the silica column in phase-separation mode at 0 °C. We discuss the separation mechanism of phase-separation mode using the water and acetonitrile with NaCl mixed solution at 0 °C.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141154309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fundamental investigation on fluorous nanoemulsion optodes: effect of matrix fluorination on selectivity 荧光纳米乳液光刻胶的基础研究：基质氟化对选择性的影响。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-25 DOI: 10.1007/s44211-024-00603-w

Soraka Iwamoto, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto

{"title":"Fundamental investigation on fluorous nanoemulsion optodes: effect of matrix fluorination on selectivity","authors":"Soraka Iwamoto, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto","doi":"10.1007/s44211-024-00603-w","DOIUrl":"10.1007/s44211-024-00603-w","url":null,"abstract":"<div><p>As fundamental investigation on fluorous nanoemulsion (NE) optodes for highly selective perfluorooctanesulfonate (PFOS<sup>−</sup>) sensing, the effect of matrix fluorination on selectivity was investigated. Due to the high hydrophobicity of PFOS<sup>−</sup> itself, it responded in exhaustive mode regardless of the fluorination ratio of the matrix, and the lowest detectable PFOS<sup>−</sup> concentration was on the order of 10<sup>−7</sup> to 10<sup>−6</sup> M. On the other hand, the response of non-fluorous interfering anions was suppressed as the fluorination ratio of the matrix increased. It was revealed that the relative selectivity of PFOS<sup>−</sup> for hydrophobic anions, ClO<sub>4</sub><sup>−</sup>, SCN<sup>−</sup>, and 1-octanesulfonate (OS<sup>−</sup>) was improved by more than one order of magnitude, up to nearly two orders of magnitude, and that it was also improved by less than one order of magnitude for hydrophilic anions, Br<sup>−</sup>, Cl<sup>−</sup>, and SO<sub>4</sub><sup>−</sup>, in logarithmic selectivity coefficient (log <span>({K}_{{PFOS}^{-}, j}^{opt})</span>).</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141096827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples 基于磁性氧化石墨烯的可重复使用磁性分子印迹聚合物，用于选择性识别和检测环境水样中的丁香酚。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-25 DOI: 10.1007/s44211-024-00601-y

Ou Sha, Yunfan Wu, Xincheng Dai, Huiwen Li, Yuan Xu, Ziwen Wang, Pu Zhang

{"title":"Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples","authors":"Ou Sha, Yunfan Wu, Xincheng Dai, Huiwen Li, Yuan Xu, Ziwen Wang, Pu Zhang","doi":"10.1007/s44211-024-00601-y","DOIUrl":"10.1007/s44211-024-00601-y","url":null,"abstract":"<div><p>In this study, a reliable method for determining eugenol content in environmental water samples was established by combining magnetic solid-phase extraction with high-performance liquid chromatography. Magnetic molecular imprinted polymers MGO@MIPs were prepared through surface molecular imprinting technique with eugenol as the template molecule. The material displayed good superparamagnetic properties and magnetic responsiveness in favor of rapid separation. The adsorption properties of MGO@MIPs for eugenol were evaluated through adsorption kinetics and selectivity experiments. MGO@MIPs were found to have favorable reusability and obvious selectivity for eugenol. In addition, adsorption and elution conditions were investigated. Under optimal conditions, a linear relationship was obtained between the concentration of eugenol and its peak area in the range of 0.02–5 mg/L (<i>R</i><sup>2</sup> = 0.9998) and the limit of detection was 4.0 × 10<sup>–6</sup> mg/mL. The performance of the established method was assessed with the average recovery of 96.59–102.20% and the relative standard deviation (RSD) below 3.5%. The application of this method provides a new perspective for the separation, enrichment and detection of eugenol in water environment.</p><h3>Graphical abstract</h3><p>Preparation of the molecularly imprinted polymers</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141096829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Derivatization to generate a product ion containing analyte-specific moiety in ESI–MS/MS 在 ESI-MS/MS 中进行衍生，生成含有分析物特异性分子的产物离子。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-24 DOI: 10.1007/s44211-024-00567-x

Tatsuya Higashi

引用次数: 0

Enhanced synthesis of antibody-functionalized gold nanoparticles for multiplexed exosome detection via mass signal amplification in LDI-TOF MS 通过 LDI-TOF MS 中的质量信号放大，增强抗体功能化金纳米粒子的合成，以实现外泌体的多重检测。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-23 DOI: 10.1007/s44211-024-00604-9

Gaon Jo, Woon-Seok Yeo

{"title":"Enhanced synthesis of antibody-functionalized gold nanoparticles for multiplexed exosome detection via mass signal amplification in LDI-TOF MS","authors":"Gaon Jo, Woon-Seok Yeo","doi":"10.1007/s44211-024-00604-9","DOIUrl":"10.1007/s44211-024-00604-9","url":null,"abstract":"<div><p>We present a novel method for sensitive exosomal protein detection using organic matrix-free laser desorption/ionization time-of-flight mass spectrometry (LDI-TOF MS) and gold nanoparticles (AuNPs) functionalized with mass tags for signal amplification (Am-tags). Target exosomes were captured by specific antibodies on AuNPs and a biochip, where the antibody-presenting AuNPs (Ab/Am-tag@AuNPs) contained excess Am-tags. LDI-TOF MS analysis revealed the mass signal of Am-tags on Ab/Am-tag@AuNPs, indicating the presence of target exosomes. Thus, the target signal was amplified by a large number of Am-tags, resulting in enhanced sensitivity. We optimized the protocol to prepare stable Ab/Am-tag@AuNPs, focusing on parameters such as the concentration and ratio of thiol molecules for AuNP functionalization, suitable solvents for the coupling reaction, and amount of antibodies conjugated to the AuNPs. Subsequently, we evaluated the ability of our method to detect exosomes isolated from three cell lines, NIH3T3, MCF7, and HeLa, using an anti-Rab5 immobilized gold chip and anti-CD63/Am-tag@AuNPs with LDI-TOF MS analysis. Calibration curves constructed for the three cell lines showed a linear relationship with an excellent limit of detection. Finally, we emphasized the versatility of our method for the quantitative detection of exosomal proteins CD63 and mucin 1 (MUC1) using two types of Am-tags. LDI-TOF MS analysis revealed the presence of CD63 and MUC1 at different expression levels in HeLa and MCF7 cancer cells. Our findings clearly indicate the potential of Ab/Am-tag@AuNPs as a sensitive and reliable approach for identifying biomarkers in exosomes, providing valuable insights into their utility in biomedical research and clinical settings.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141080454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A high-throughput sequence determination for one cyclic peptide immobilized on a single bead by the one-pot cyanidation followed by MALDI-TOF–MS/MS for discovery of interacting peptides 通过一锅氰化法和 MALDI-TOF-MS/MS，对固定在单个珠子上的环肽进行高通量序列测定，以发现相互作用的肽。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-05-22 DOI: 10.1007/s44211-024-00594-8

Takeshi Kasama, Kiyoshi Nokihara

引用次数: 0