التفاصيل البيبلوغرافية
| العنوان: |
Determination of total mercury in biological tissue by isotope dilution ICPMS after UV photochemical vapor generation |
| المؤلفون: |
Mo Xu, Rui Liu, Jiayun Zhang, Ying Gao, Lu Yang, Zeming Shi |
| المصدر: |
Talanta. 117:371-375 |
| بيانات النشر: |
Elsevier BV, 2013. |
| سنة النشر: |
2013 |
| مصطلحات موضوعية: |
Formates, Isotope dilution inductively coupled plasma mass spectrometry, Formic acid, Indicator Dilution Techniques, chemistry.chemical_element, Isotope dilution, Photochemistry, medicine.disease_cause, External calibration, Sample preparation procedure, Analytical Chemistry, Sonication, Biological samples, chemistry.chemical_compound, Isotopes, Limit of Detection, medicine, Animals, Humans, Pneumatic nebulization, Sample preparation, Muscle, Skeletal, Inductively coupled plasma mass spectrometry, Chemical vapor generation, Detection limit, Tissue, Chromatography, Mass spectrometry, Chemistry, Spectrophotometry, Atomic, Mercury (metal), Mercury, Reference Standards, Photochemical Processes, Certified reference materials, Mercury (element), Mercury Isotopes, Isotope dilutions, Dogfish, Calibration, Vapors, Volatilization, Inductively coupled plasma, Oxidation-Reduction, Ultraviolet, Hair |
| الوصف: |
A method is developed for the determination of trace mercury in biological samples using photo chemical vapor generation (PVG) and isotope dilution inductively coupled plasma mass spectrometry (ID ICPMS) detection. Biological tissues were solubilized in formic acid. Subsequently, the sample solutions were exposed to an ultraviolet (UV) source for the reduction of mercury into vapor species prior to ICPMS measurements. The formic acid served not only as a tissue solubilizer in the sample preparation procedure, but also as a photochemical reductant for mercury in the PVG process. The problem arising from the opaque formic acid digested solution was efficiently solved by using ID method. The optimum conditions for sample treatment and PVG were investigated. A limit of detection (LOD) of 0.5 pg g-1, based on an external calibration, provided 350-fold improvement over that obtained by utilizing conventional pneumatic nebulization sample introduction. Method validation was demonstrated by the determination of total mercury in several biological tissue certified reference materials (CRMs). The results were in good agreement with the certified values. © 2013 Elsevier B.V. All rights reserved. |
| تدمد: |
0039-9140 |
| الوصول الحر: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dfd9229429e54a52fb1e73e07ee113bTest
https://doi.org/10.1016/j.talanta.2013.09.024Test |
| حقوق: |
CLOSED |
| رقم الانضمام: |
edsair.doi.dedup.....7dfd9229429e54a52fb1e73e07ee113b |
| قاعدة البيانات: |
OpenAIRE |
