Science Journal of Analytical Chemistry最新文献_第2页

Nutritional Composition of Soft Drinks and Chips Consumed by School-aged Children in Dakar (Senegal) 达喀尔(塞内加尔)学龄儿童饮用软饮料和薯片的营养成分

Science Journal of Analytical Chemistry Pub Date : 2021-06-10 DOI: 10.11648/J.SJAC.20210902.13

A. Diop, Diokel Sarr, Ndèye Yacine Ndiaye Diallo, Nassifatou Koko Tittikpina, Ousmane Niass, S. Sarr, B. Ndiaye, Y. Diop

{"title":"Nutritional Composition of Soft Drinks and Chips Consumed by School-aged Children in Dakar (Senegal)","authors":"A. Diop, Diokel Sarr, Ndèye Yacine Ndiaye Diallo, Nassifatou Koko Tittikpina, Ousmane Niass, S. Sarr, B. Ndiaye, Y. Diop","doi":"10.11648/J.SJAC.20210902.13","DOIUrl":"https://doi.org/10.11648/J.SJAC.20210902.13","url":null,"abstract":"In Senegal, social-economic changes have likely affected dietary habits. As in many parts of the world, Senegalese children consume significant amounts of food between main meals (snacking) with a wide consumption of soft drinks and chips products which can have negative effects on children sanitary health. This study aims at investigating some dietary habits of Senegalese school-age children and the nutritional composition of some snacking products to alleviate nutrition and health issues caused by food quality. A survey was carried out in schools in some districts of Dakar and allowed to identify the most consumed soft drinks and chips from which samples were taken and subjected to physicochemical analysis. Snacking was a common habit in Senegalese school-age children with 68% declaring regular consumption of chips and 88% that of sweetened drinks. The main component in soft drinks after water was carbohydrates with contents ranging between 6.50 ± 0.27 and 13.75 ± 0.01% and energy values varying between 26.00 ± 1.09 and 54.99 ± 0.04 kcal/100g. Some minerals such as magnesium, sodium, potassium and calcium were also present with levels comprised between 4.35 ± 0.15 mg/100g to 167.41 ± 9.50 mg/100g. The ranges were: Mg (8.26 ± 0.23-12.11 ± 0.84), Na (4.35 ± 0.15-8.18 ± 0.10), K (4.50 ± 0.35-8.18 ± 0.52) and Ca (120.51 ± 10.90-167.41 ± 9.50). The macronutrients in chips were proteins (5.95 ± 0.10 - 10.70 ± 0.05%), fat (19.86 ± 0.65 - 35.94 ± 0.01%), carbohydrates (47.43 ± 0.44 - 64.65 ± 0.78%) and dietary fiber (1.55 ± 0.10 - 2.13 ± 0.23%). Sodium and potassium were also present with levels of 580.04 ± 23.98 to 692.97 ± 40.78 mg/100g for sodium and 159.84 ± 6.86 to 318.57 ± 1.09 mg/100g for potassium. The results of this study can help orient the strategies to put into effect in order to inform children and their parents on the best diets to adopt for a healthy and quality life.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116218316","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

Intake and Abuse of Psychoactive Substances and Its Relative Consequences: A Review 精神活性物质的摄入和滥用及其相关后果:综述

Science Journal of Analytical Chemistry Pub Date : 2021-05-14 DOI: 10.11648/J.SJAC.20210902.12

Anthony Ugbedeojo Atumeyi, T. T. Ligom, Joseph Terfa Tivkaa

{"title":"Intake and Abuse of Psychoactive Substances and Its Relative Consequences: A Review","authors":"Anthony Ugbedeojo Atumeyi, T. T. Ligom, Joseph Terfa Tivkaa","doi":"10.11648/J.SJAC.20210902.12","DOIUrl":"https://doi.org/10.11648/J.SJAC.20210902.12","url":null,"abstract":"Substance abuse has been a thorny public health concern throughout human history. Manifestly, prevention and treatment are the two main strategies commonly adopted to tackle the problem of substance abuse. They are in fact cross-disciplinary, and they relate to the various domains of heredity, biology, psychology, cognitive science, family, social development and cultural structures. Almost everyone, directly or indirectly, comes in contact everyday with drug/substance use or abuse. The drug scene is a varied one that includes licit and illicit drugs, street drugs, prescription drugs, over- the-counter drugs, drugs for pleasure, and drugs to ease pain. This special issue, “psychoactive substance abuse”, has been reviewed going through the global world and Nigeria in particular to enhance a re-think on processes and influences of substance abuse across different domains, through which a multilevel perspective is considered more helpful for analyzing its complex nature, courses and consequences which include mental illness, liver and kidney related diseases, low productivity, child abuse, sexual abuse, loss of individual integrity, destruction of nasal tissues, lesions in lung unpredictable effects such as convulsion, respiratory paralysis and untimely death. This in turn checked the possible negative consequences of excess intake of these psychoactive drugs in order to discourage the users and alert the necessary authorities to seriously act to this effect.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121313684","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

Comparison of Spectrophotometric Methods for Determination of Iron in Acid Cleaning, and Passivating Stainless Steel Solution by UV-VIS, ICP/MS, and FAAS 紫外-可见、ICP/MS和原子吸收光谱法测定酸洗和钝化不锈钢溶液中铁的比较

Science Journal of Analytical Chemistry Pub Date : 2021-05-08 DOI: 10.11648/J.SJAC.20210902.11

Y. Yildiz, R. Karadag, Irmak Cengiz

引用次数: 1

Bioaccumulation of Mercury in Marine Algae from Dakar Coast (Senegal) and Galician Rias (Spain) 达喀尔海岸(塞内加尔)和加利西亚里亚斯(西班牙)海藻中汞的生物积累

Science Journal of Analytical Chemistry Pub Date : 2021-03-30 DOI: 10.11648/J.SJAC.20210901.13

B. Ndiaye, M. Ndiaye, B. Cid, A. Diop, I. Diagne, Dame Cissé, C. Dione, M. Hane

{"title":"Bioaccumulation of Mercury in Marine Algae from Dakar Coast (Senegal) and Galician Rias (Spain)","authors":"B. Ndiaye, M. Ndiaye, B. Cid, A. Diop, I. Diagne, Dame Cissé, C. Dione, M. Hane","doi":"10.11648/J.SJAC.20210901.13","DOIUrl":"https://doi.org/10.11648/J.SJAC.20210901.13","url":null,"abstract":"Algae samples from Dakar coast (Senegal) and Galician Rias (Spain) were analyzed by cold vapor atomic absorption spectrometry (CV-AAS) to assess the bioaccumulation of mercury in the two aquatic systems. In this work, the contents of inorganic mercury and total mercury were determined. Simplified analytical procedures (microwave digestion and ultrasonic assisted extraction) were used for sample preparation. A reference material (BCR-60) was used to validate the analytical procedures used for sample preparation. The results of the analysis show that the total mercury contents found in algae samples from the Galician Rias are relatively similar to those found in algae samples from the Dakar coast. However, the inorganic mercury content of the algae from Pontevedra Ria was considerably higher than that found in the algae samples from Vigo Ria. The distribution was observed for inorganic mercury and total mercury, indicating that inorganic mercury is the major mercury species that bioaccumulates in marine algae. The inorganic mercury contents were always approximately equal to those of total mercury in the algae samples and a satisfactory correlation (p <0.0001; r = 0.9997) was obtained between them. Finally, the ANOVA analysis indicates that no significant difference (F = 0.165; p = 0.809) was found between the algae of the two aquatic systems (Dakar coast and Galician Rias).","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131768814","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

Study on Mutation Resistance to Imatinib in Chronic Myeloid Leukemia Patients from West India 西印度慢性髓系白血病患者对伊马替尼的突变耐药研究

Science Journal of Analytical Chemistry Pub Date : 2021-01-12 DOI: 10.11648/J.SJAC.20210901.11

A. Darji, P. Bharadia

{"title":"Study on Mutation Resistance to Imatinib in Chronic Myeloid Leukemia Patients from West India","authors":"A. Darji, P. Bharadia","doi":"10.11648/J.SJAC.20210901.11","DOIUrl":"https://doi.org/10.11648/J.SJAC.20210901.11","url":null,"abstract":"Imatinib is a type of protein tyrosine kinase inhibitor which inhibits the constitutive abnormal tyrosine kinase created by the Philadelphia chromosome i.e. the BCR-ABL tyrosine kinase, abnormality in CML patient. The aim of the study is to assess the response of imatinib in CML patients and to observe resistance to imatinib. Study was performed at Ahmedabad, Gujarat, India. Dose of 400, 600, 800 mg of Imatinib was found to be prescribed to all patients during the study. Comparison of laboratory parameters and PCR data were done after measurement by RT-PCR method. Total 256 patients with CML were enrolled in the study. 196 patients had completed study as per protocol. 38 patients were newly diagnosed whereas 158 patients were already diagnosed with CML. 89.29% (n = 175) of patients achieved complete haematological response, Complete MolR were achieved in n = 41 at 6th months, n = 1 at 12th month & 18th month and no patient was found with none CyR out of 196 patients; no patient were found with minimal CyR at 6th month, 2 patient were at 12th month and 3 patients were at 18th month. Mean PCR value (BCR-ABL/ABL ratio) in patient was found 0.245±1.16 at Day 0, 0.824±1.51 at 6th month, 4.086±9.58 at 12th month and 6.713±11.32 at 18th month visit. In conclusion, it was observed that resistance to imatinib might be developed within an average time of 12 months in the patients due to which survival rate was drastically reduced.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132434505","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

Source Apportionment and Health Risk of Heavy Metals in Contaminated Agricultural Soil from Egi, Rivers State, Nigeria 尼日利亚河流州埃吉市污染农业土壤重金属来源分析及健康风险

Science Journal of Analytical Chemistry Pub Date : 2020-01-04 DOI: 10.11648/J.SJAC.20190706.12

E. Owhoeke, Michael Jnr Horsfall, C. I. Osu

{"title":"Source Apportionment and Health Risk of Heavy Metals in Contaminated Agricultural Soil from Egi, Rivers State, Nigeria","authors":"E. Owhoeke, Michael Jnr Horsfall, C. I. Osu","doi":"10.11648/J.SJAC.20190706.12","DOIUrl":"https://doi.org/10.11648/J.SJAC.20190706.12","url":null,"abstract":"The study was to identify the source and evaluate the health risk of heavy metals in contaminated agricultural soil from Egi community (Oboburu, Obagi and Ogbogu), Niger Delta, Nigeria. Multivariate and health risk equations were employed to achieve this. The mean of heavy metals in samples of Oboburu indicated high levels for Fe (271.0±156.6 mg/kg), Pb (111.2±94.97 mg/kg), and Mn (27.92±23.80 mg/kg), Obagi was high for Fe (248.4±175.9 mg/kg), Mn (80.46±12.40 mg/kg), and Co (116.3±193.7 mg/kg), and Ogbogu was high for Fe (160.9±150.3 mg/kg), Co (240.1±412.1 mg/kg), and Mn (42.90±16.82 mg/kg) respectively. Geo-accumulation index indicated that Pb, Cd and Co was of high contamination and the enrichment factor showed that metals were of anthropogenic sources. The Principle component analysis revealed three (3) components accounting for 88.448%, which revealed that the contamination in the sample was more of anthropogenic than biogenic. The Cancer Risk estimate for children population was of high risk for Ni, Cr, Cd and Pb (10-5 to 10-6) while adult population was 10-6 and lower. The non-carcinogenic risk indicated highest value for children in Co (2.75), Pb (1.70E-1) and Fe (1.32E-1), while adult in Co (1.007) and Fe (3.29E-2). The findings suggest human activities have contributed greatly to the contamination of the agricultural soil and usage of such may be of risk to the users.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124168907","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

Review on Nutritional Value of Cassava for Use as a Staple Food 木薯主食营养价值研究进展

Science Journal of Analytical Chemistry Pub Date : 2019-09-27 DOI: 10.11648/J.SJAC.20190704.12

Adugna Bayata

引用次数: 36

Extraction of Pure-electronic Transition Frequency and Chromophor Polymorphism from Diffuse Vibronic Spectra 从漫射振动谱中提取纯电子跃迁频率和发色团态

Science Journal of Analytical Chemistry Pub Date : 2019-09-21 DOI: 10.11648/J.SJAC.20190704.11

V. A. Tolkachev, A. P. Blokhin

引用次数: 10

Experimental Modeling of the Formation of the Metallic Core of the Moon by the Method of High-Temperature Centrifuges 月球金属核形成的高温离心实验模拟

Science Journal of Analytical Chemistry Pub Date : 2019-08-13 DOI: 10.11648/J.SJAC.20190703.12

Lebedev Evgeny Borisovich, Averin Viacheslav Vasilyevich, Lukanin Oleg Alexandrovich

{"title":"Experimental Modeling of the Formation of the Metallic Core of the Moon by the Method of High-Temperature Centrifuges","authors":"Lebedev Evgeny Borisovich, Averin Viacheslav Vasilyevich, Lukanin Oleg Alexandrovich","doi":"10.11648/J.SJAC.20190703.12","DOIUrl":"https://doi.org/10.11648/J.SJAC.20190703.12","url":null,"abstract":"At early stages of the formation of planetary bodies, silicate, metallic, and sulfide phases, which have been formed in the course of the partial or complete fusion of the initial planetary substance, were subject to a gravitational differentiation. The latter is related to the separation of the crystalline and molten phases in density and composition. Althose in recent years a number of papers deal with the experimental and theoretical determination of the processes of the percalation of metallic melts through the crystalline silicate matrix and the physical properties of the metallic and sulfide melts. For the Moon, the problem of the existence of the metallic or sulfide core still remains unsolved. There is stil the nessity of further investigation in this direction. The possible origin of the Moon’s metallic core at the precipitation of iron-sulfide phases during the partial melting of ultramafic material under various redox conditions was experimentally modeled by partially melting the model system olivine (85 wt %)+ ferrobasalt (10 wt %)+ metallic phase Fe95S5 (5 wt %) in a high-temperature centrifuge at 1430-1450°C.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130487315","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 Sorting System for Aluminum Alloy Scrap Based on Laser-Induced Breakdown Spectroscopy 基于激光诱导击穿光谱的铝合金废料分选系统

Science Journal of Analytical Chemistry Pub Date : 2019-07-13 DOI: 10.11648/J.SJAC.20190703.11

Mikio Kuzuya

引用次数: 3