The determination of cadmium, zinc and lead in human teeth by atomic-absorption spectrophotometry
نویسندگان
چکیده
منابع مشابه
Direct determination of lead and cadmium in blood and urine by flameless atomic absorption spectrophotometry.
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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An analytical procedure was derived to provide an accurate measurement of low lead (Pb) and cadmium (Cd) concentrations in soil extracts using graphite furnace atomic absorption spectrometry (GFAAS). Based on peak area measurements and with background correction, the use of 2% phosphoric acid as chemical modifier enables the GFAAS to give measurements of Pb and Cd concentration as low as 3 fLg ...
متن کاملDetermination of cadmium in blood and urine by graphite furnace atomic absorption spectrophotometry.
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...
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ژورنال
عنوان ژورنال: JOURNAL OF DENTAL HEALTH
سال: 1973
ISSN: 0023-2831
DOI: 10.5834/jdh.23.3_192