METHODS OF FLUORIMETRIC DETERMINATION OF TRACE AMOUNT OF SELENIUM IN BIOLOGICAL MATERIALS,WATER AND SOIL 1.DETERMINATION OF SELENIUM IN HAIR,BLOOD AND URINE
- VernacularTitle:生物样品、水及土壤中痕量硒的荧光测定法 一、发、血、尿和其它组织中痕量硒的测定
- Author:
Guangya WANG
;
Ruihua ZHOU
;
Shuzhuang SUN
;
Taian YIN
;
Shengjie LIU
;
Guangqi YANG
- Publication Type:Journal Article
- Keywords:
seleninm biological material hair blood urine
- From:
Acta Nutrimenta Sinica
1956;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
A modification of Watkinson's method was used for the flaorimetric determination of selenium in blood, hair, urine and animal tissues with 2,3-Di-aminonaphthalene. A mixture of sulphuric, perchloric acid and sodium molybdate was used for digestion. As little as 3 ng selenium in the sample could be estimated out. Coefficients of variation and recoveries for blood, hair, urine and animal tissues were 3.9, 5.5, 3.3 and 5.6%, and 97.0, 95.0, 97.8 and 99.8% respectively. No significant difference in selenium content estimated was found as graded amounts of samples were taken for analysis, indicating no foreign interference in the extracts. Both precision and accuracy of this method are satisfactory.
