Atomic absorption spectrometry of nickel in serum, urine, and other biological materials.
نویسندگان
چکیده
An atomic absorption technique is described foranalysis of nickel in serum, whole blood, urine, and other biological materials. After the sample has been subjected to protein precipitation or acid digestion, nickel is extracted into methylisobutylketone as a pyrrolidine dithiocarbamate complex, and is measured by atomic absorption spectrometry. The following values (mean ±SD) were obtained for nickel in specimens from healthy subjects living in central Connecticut: serum, 0.26 ± 0.08 ,Lg/100 ml (N = 40); whole blood, 0.48 ± 0.13 g/100 ml (N = 17); and urine, 0.23 ± 0.14 ,g/100 ml, = 2.4 ± 1.1 pg/day (N = 26). In sera obtained from 36 patients within 24 h after myocardial infarction, the mean nickel concentration was 0.51 ± 0.27 ,g/100 ml (p vs. controls = 0.001). In 132 consecutive adult patients, admiffed to the hospital for all diagnoses except myocardial infarction, the mean concentration of serum nickel was 0.22 ± 0.11 g/100 ml. Measurements of serum nickel may prove to be useful in diagnosis of acute myocardial infarction. Additional Keyphrases normal values #{149} nickel pyrrolidine dithiocarbamale complex methylisobutyl ketone extractant #{149} chelation of nickel . acid digestion vs. TCA precipitation industrial hazard. myocardial infarction
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ورودعنوان ژورنال:
- Clinical chemistry
دوره 16 6 شماره
صفحات -
تاریخ انتشار 1970