Determination of Mercury in Milk by Cold Vapor Atomic Fluorescence: A Green Analytical Chemistry Laboratory Experiment

2011 ◽  
Vol 88 (4) ◽  
pp. 488-491 ◽  
Author(s):  
Sergio Armenta ◽  
Miguel de la Guardia
Keyword(s):  
Analytical Chemistry ◽  
Laboratory Experiment ◽  
Chemistry Laboratory ◽  
Green Analytical Chemistry ◽  
Atomic Fluorescence ◽  
Cold Vapor

scholarly journals NEW, GREEN AND MINIATURIZED ANALYTICAL METHOD FOR DETERMINATION OF CEFADROXIL MONOHYDRATE IN CAPSULES

2019 ◽  
Vol 3 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Bianca Marco ◽  
Ana Kogawa ◽  
Hérida Salgado
Keyword(s):  
Analytical Chemistry ◽  
Standard Sample ◽  
Low Cost ◽  
Visible Region ◽  
Hplc Method ◽  
Minimal Amount ◽  
Green Analytical Chemistry ◽  
Color Reagent ◽  
Routine Quality Control

Cefadroxil, an oral antimicrobial, presents few techniques optimized for the reduction of solvents and toxic residues and/or non-use of them. So, a quantitative, new and miniaturized method for determination of cefadroxil monohydrate in capsules has been developed and validated by spectrophotometric method in the visible region according to the international guidelines. The analyzes were performed using microplates containing 96 wells, 1 % of phenolphthalein and sodium hydroxide 0.1 M as reagent at 552 nm. The method was (i) linear in the range of 15-115 µg mL-1, (ii) selective when comparing standard, sample, adjuvants and color reagent, (iii) precise with deviations below 4 %, (iv) accurate when comparing the proposed method with the HPLC method, (v) robusts by making small and deliberate modifications to the method, (vi) besides being fast, low cost, eco-friendly and generates minimal amount of waste. The method can be applied to the routine quality control of cefadroxil monohydrate in capsules and an effective and accessible alternative that contemplates the concepts of current and sustainable green analytical chemistry.

Non-chromatographic separation and determination of thimerosal and inorganic mercury in vaccines by Fe3+-induced degradation with cold vapor atomic fluorescence spectrometry

2018 ◽  
Vol 10 (18) ◽  
pp. 2144-2150 ◽  
Author(s):  
Qi Xu ◽  
Zhenhua Wang ◽  
Linghe Jin ◽  
Peng Liu ◽  
Yuan Tian ◽  
...  
Keyword(s):  
Chromatographic Separation ◽  
Inorganic Mercury ◽  
Elemental Mercury ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Cold Vapor

By adding Fe3+ into an HCl carrier, thimerosal can be transformed into elemental mercury cold vapor in the presence of KBH4 and detected by AFS.

scholarly journals Fractional Determination of Mercury Species in Biological Samples by Use of HPLC and Cold Vapor Atomic Fluorescence Spectrometry

2012 ◽  
Vol 61 (12) ◽  
pp. 1073-1077 ◽  
Author(s):  
Kentaro HAYASHI ◽  
Joji OHSAKO ◽  
Tsunenori NAKAJIMA ◽  
Hirokazu TAKANASHI ◽  
Akira OHKI
Keyword(s):  
Biological Samples ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Mercury Species ◽  
Atomic Fluorescence ◽  
Cold Vapor
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