✦ LIBER ✦

Determination of urinary chromium levels for healthy men and diabetic patients by electrothermal atomic absorption spectrometry

✍ Scribed by Liu Ping; K. Matsumoto; K. Fuwa

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 540 KB
Volume: 147
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(83)80085-3

No coin nor oath required. For personal study only.

✦ Synopsis

Urinary chromium levels for healthy and diabetic men were determined by direct graphite-furnace atomic absorption spectrometry. The average values were 0.72 + 0.31 ng ml-' for 23 healthy men aged 23 to 35, 0.39 5 0.19 ng ml-' for 19 healthy men aged 47 to 69, and 1.0 f 0.9 ng ml-' for 23 diabetic patients aged 13 to 79. Some urines of diabetic patients exhibit values > 1.3 ng ml-', which are never found in healthy men. The proposed method involves direct injection of 20 ~1 of urine into a pyrolytically-coated graphite tube, and a standard addition calibration procedure involving a pooled urine sample. The results are compared with those obtained by a liquid-liquid extraction method.

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