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一、改用10毫升尿标本量和标准管肉眼比色法,一般技術熟練的檢验人員一天平均可作100—150个标本,基本上可滿足鉛中毒普查工作之需要。 二、單用濃硫酸作消化剂与硫酸——硝酸法比較,对鉛囘收的影响不大,一般仍以硫酸——硝酸消化較佳。 三、快速测定法的鉛回收率,一般鉛含量在2微克左右为隹,低于此量者囘收率较高,超过2微克者則較低;平均回收率达99％。 四、打薩宗应用液的濃度与标准管的色澤有关,一般濃度在1.5毫克％为佳。
First, the use of 10 ml urine specimens and standard tube naked eye colorimetry, the average skilled inspection personnel can make an average of 100-150 specimens a day, basically to meet the needs of lead poisoning census work. Second, the use of concentrated sulfuric acid alone as a digestive agent compared with the sulfuric acid-nitric acid method, has little effect on lead recovery, and is generally still better with sulfuric acid-nitric acid digestion. Third, the rapid determination of lead recovery rate, the general lead content of about 2 micrograms is helium, lower than this amount of high recovery, more than 2 micrograms is lower; the average recovery rate of 99%. Fourth, the concentration of Dazazon application solution is related to the color of the standard tube, and the general concentration is 1.5 mg%.