Determination of Lead in Urine by Atomic Absorption Spectrophotometry
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چکیده
منابع مشابه
Determination of oxalic acid in urine by atomic absorption spectrophotometry.
A method is described for determination of oxalic acid in urine using atomic absorption spectrophotometry. The concentration of urinary oxalic acid is calculated by using the difference between two determinations of calcium: first, the excess of calcium in the supernatant after precipitation as calcium oxalate at pH 5, and second, the total calcium determined at pH less than 1 (endogenous and a...
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We describe procedures for direct determination of lead and cadmium in blood and urine by flameless atomic absorption spectrophotometry. Before analysis, the samples are pre-ashed in microboats in an ordinary laboratory oven. In this way, many samples can be prepared and pre-ashed simultaneously. We find the procedures presented in this work to be rapid, accurate, and precise.
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A flameless atomic-absorption system has been developed for the determination of low concentrations of mercury in gaseous, solid and liquid samples of organic and inorganic materials.
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カ ド ミウム(Cd)作 業者 のCd曝 露 指 標 として,血 液 お よび 尿 中Cdの 測 定 が有 効 であ り1),こ れ ら生体 試 料 中 のCd測 定方 法 と しては黒 鉛 炉原 子 吸 光法2~6)が 広 く 用 い られ て い る.こ の方 法 に よるCd定 量 では, Cdお よび そ の化合 物 の融点 が低 いた め,原 子 化 段階 以 前 での 揮 散 が問 題 で あ り,対 策 と して適 当な 干渉 抑制 剤 を添 加 す る ことに よ り,揮 散 を 抑制 す る方 法 が と られ て い る. Cd定 量 に 対 して は, HNO32-4), NH4H2PO43,4), NH4NO33-5), NH4F4,6)お よびPd(NO3)25)な どが 干渉 抑制 剤 と して提 唱 され て い る.血 中Cd(Cd-B)の 定量 に従...
متن کاملDetermination of calcium and magnesium in serum, urine, diet, and stool by atomic absorption spectrophotometry.
ATOMIC ABSORPTION was developed by Walsh and his associates (1) as an analytical technic applicable to the determination of many metals. Willis (2-4) found that this technic was applicable in particular to tile determination of calcium and magnesium in Serum and urine. These published results indicated that atomic absorption spectrophotometry would be a simple, rapid, and practical method for t...
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ژورنال
عنوان ژورنال: Occupational and Environmental Medicine
سال: 1968
ISSN: 1351-0711
DOI: 10.1136/oem.25.2.139