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1)  Lead content in the drinking water
铅析出量
2)  deposited lead
析出铅
1.
Determining tin in deposited lead by benzfluorenone-bromo-hexadecyl-trimethylamine spectrophotometry;
苯芴酮-溴代十六烷基三甲胺分光光度法测定析出铅中的锡
3)  Pb precipitation
铅析出
4)  lead release
铅溶出量
1.
This article is to analyse how the acid effect and precipitation effect of the medium influence the measurement of the lead release of daily-use ceramics in 4PCT (V/V) leach liquor of formic acid which contains different media.
分析了含有不同介质的4%(V/V)乙酸浸提液中,介质的酸效应、沉淀效应对日用陶瓷铅溶出量测定的影响,指出沉淀效应是影响陶瓷铅溶出量的主要因素。
2.
The factors influencing lead release of the porcelain products were discussed,the ways and the methods decreasing lead release of the porcelain products were explored.
主要论述了影响彩饰陶瓷制品铅溶出量的因素,并对降低陶瓷制品铅溶出量的途径及措施进行了探讨。
5)  extracting copper and removing lead
提铜析出铅
6)  extractable cadmium and lead
铅镉溶出量
补充资料:铅-铅测年
分子式:
CAS号:

性质:238U和235U两个母体铀同位素的特性实质相同,所产生的放射性成因206,207Pb的方程可合并为(207Pb/206Pb)=[(235U/238U)](t-1)。235U/238U现在的比值是1/137.8,利用非放射性成因‘稳定’204Pb作为参考同位素,作(207Pb/204Pb)与(206Pb/204Pb)的Pb-Pb等时线,应用方程计算年龄,式中(207Pb/204Pb)和(206Pb/204Pb)0是初始比值。

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