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正常人血铅含量约在20—40微克/100毫升范围内。一般认为超过70微克/100毫升即表示体内有铅的吸收。常规的原子吸收法测定血铅手续繁杂,且需抽静脉血0.5—5毫升,对于大范围内体检很不方便。用无火焰石墨炉测血铅灵敏度高,取血量低至1微升,但不易推广。本文采用样品舟技术测定血铅,样品量只需10微升。所用仪器为403型原子吸收分光光度计及其样品舟附件。后者装在喷雾器上,有一个可前后
Normal blood lead levels of about 20-40 micrograms / 100 ml range. Generally believed that more than 70 micrograms / 100 ml that is the body’s lead absorption. Conventional atomic absorption spectrometry blood lead procedures complicated, and need to take venous blood 0.5-5 ml, for a wide range of physical examination is not convenient. No flame graphite furnace blood lead high sensitivity, take blood as low as 1 microliters, but not easy to promote. This article uses the sample boat technology to determine blood lead, the sample size only 10 microliters. The instrument used was the 403 atomic absorption spectrophotometer and its sample boat attachment. The latter installed in the sprayer, there is a front and back