Comparison of Spectrophotometric Methods for Determination of Iron in Acid Cleaning, and Passivating Stainless Steel Solution by UV-VIS, ICP/MS, and FAAS
Yusuf Yildiz,
Recep Karadag,
Irmak Cengiz
Issue:
Volume 9, Issue 2, June 2021
Pages:
32-38
Received:
8 April 2021
Accepted:
28 April 2021
Published:
8 May 2021
Abstract: Generally, more sophisticated techniques such as, flame atomic absorption (AAS), inductively coupled plasma spectrometer (ICP-MS), and UV/Visible Spectrophotometer were used to determine trace iron metals in pickling (acid cleaning), and passivating stainless steel solutions. Simple and novel spectrophotometric methods are described for simultaneous determination of iron. While these techniques provide excellent sensitivity and selectivity. The results were found to be in satisfactory agreement (shows no significant difference) with those acquired by the flame atomic absorption spectrophotometer (FAAS), UV-Vis Spectrometer, and ICP/MS techniques. The results shows that the concentration of iron are very close each other (less than 5.0%) in the pickling and passivating solutions.
Abstract: Generally, more sophisticated techniques such as, flame atomic absorption (AAS), inductively coupled plasma spectrometer (ICP-MS), and UV/Visible Spectrophotometer were used to determine trace iron metals in pickling (acid cleaning), and passivating stainless steel solutions. Simple and novel spectrophotometric methods are described for simultaneo...
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Intake and Abuse of Psychoactive Substances and Its Relative Consequences: A Review
Anthony Ugbedeojo Atumeyi,
Thaddeus Terungwa Ligom,
Joseph Terfa Tivkaa
Issue:
Volume 9, Issue 2, June 2021
Pages:
39-49
Received:
6 April 2021
Accepted:
27 April 2021
Published:
14 May 2021
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.
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 ...
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Nutritional Composition of Soft Drinks and Chips Consumed by School-aged Children in Dakar (Senegal)
Amadou Diop,
Diokel Sarr,
Ndèye Yacine Ndiaye Diallo,
Nassifatou Koko Tittikpina,
Ousmane Niass,
Serigne Omar Sarr,
Bara Ndiaye,
Yerim Mbagnick Diop
Issue:
Volume 9, Issue 2, June 2021
Pages:
50-57
Received:
19 May 2021
Accepted:
1 June 2021
Published:
10 June 2021
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.
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 die...
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