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Adsorptive stripping voltammetric analysis of some pterines in human urine

✍ Scribed by J.M.Fernández Alvarez; A.Costa García; P.Tuñón Blanco

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
406 KB
Volume
7
Category
Article
ISSN
0731-7085

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✦ Synopsis

The combined content of biopterin and he separate folic acid content of human urine have been quantitated by phase-selective alternating-current stripping voltammetry at the static mercury drop electrode. The use of disposable C18 cartridge allowed the samples to be separated into two fractions, one containing biopterin and neopterin and the other folic acid. The average concentration of biopterin and neopterin together was 704 ng ml-1; precision, 6.6% (RSD, n=7); mean recovery, 96%. The average concentration of folic acid was 836 ng ml-1; precision, 8.2% (RSD, n=8); mean recovery, 91%.

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