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英语翻译采用萃淋树脂分离-分光光度法(GB11220.1-89)测定污染土壤样品中铀的放射性活度.土壤样品经灼烧有机物后

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英语翻译
采用萃淋树脂分离-分光光度法(GB11220.1-89)测定污染土壤样品中铀的放射性活度.土壤样品经灼烧有机物后,用HF除硅,KOH和过氧化钠熔融后,用1 mol·L-1硝酸溶液浸出,U以硝酸铀酰形式被CL-5209萃淋树脂所吸附,树脂上的U再用混合络合剂解吸.当pH值为7.8时,在水-丙酮介质中,U(VI)与2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚(Br-PADAP)和F-形成稳定的紫红色络合物,采用分光光度法测定,即可计算出污染土壤中U的放射性活度(U检测下限为1.1×10-3 Bq·g-1,相对偏差
英语翻译采用萃淋树脂分离-分光光度法(GB11220.1-89)测定污染土壤样品中铀的放射性活度.土壤样品经灼烧有机物后
Using extraction resin separation -.Spectrophotometry (GB11220.1-89) Determination of uranium in soil samples contaminated soil samples by radioactivity after the burning of organic matter,in addition to silicon with HF,KOH and sodium peroxide fusion later,with a mol · L-1 nitric acid leaching,U uranyl nitrate form is CL-5209 Levextrel resin adsorption,U on the resin and then mixed complexing desorption at pH 7.8,in the water - acetone medium ,U (VI) with 2 - (5 - bromo-2 - pyridylazo) -5 - diethylaminophenol (Br-PADAP) and F-purple form a stable complex,using spectrophotometry,namely calculate the U of contaminated soil radioactivity (U detection limit of 1.1 × 10-3 Bq · g-1,the relative deviation of