1) th e method of lead nitrate
硝酸铅法
2) lead nitrate
硝酸铅
1.
5), the phosphate reacts with lead nitrate and chloride ion to form the precipitation PbCl 2[Pb 3(PO 4) 2] 2·H 2O, a square wave voltammetric method for the determination of excess lead in the solution was set up.
5的六次甲基四胺 -盐酸缓冲溶液中 ,硝酸铅与磷酸根和氯离子反应 ,生成磷酸氯化铅复盐沉淀 ,用方波伏安法测定过量的铅离子 ,从而间接测定无机磷。
2.
When lead nitrate was applied as activator to conduct flotation test for wolframite slime in Shizhuyuan Mill (the content of WO\-3 is 1\^62%), the wolframite concentrate containing WO\-3 66\^04% can be obtained with the recovery of 90\^36%.
硝酸铅对黑钨矿浮选有显著的活化作用，采用硝酸铅作活化剂对含ＷＯ３１。
3.
The concentrated lead ore is decomposed by nitric acid and then the lead nitrate solution is obtained.
用硝酸分解精铅矿制得硝酸铅溶液，加入适量的沉淀剂除去溶液中的杂质，再经蒸发、结晶制得产品。
3) plumbous nitrite
亚硝酸铅
4) lead acetate assay
醋酸铅法
1.
Results:Among 200 cases of diarrheal children,138(69%)showed positive fecal lactose by modified Ban′s reagent assay,while 136(68%) did positive fecal lactose by the lead acetate assay.
方法:同时采用改良斑氏试剂法和醋酸铅法对60例健康儿、60例非腹泻患儿及200例腹泻患儿同一份大便标本进行粪乳糖检测。
5) lead acetate method
乙酸铅法
6) the ammonium nitrate method
硝酸铵法
1.
A technological innovation has been implemented to improve the ammonium nitrate method to measure the manganese contents, with the favourable effects to eliminate deviations caused by improper markings or by loss resulted from the spilling of test liquid in the process of measurement.
对测定锰矿的硝酸铵法进行了改进 ,消除了测定过程中因试液溅跳损失和标定方法不适带来的偏差 ,方法简单、快速、准确 ,可满足生产要求。
补充资料：硝酸铅
化学式Pb(NO3)2。无色的立方或单斜晶体;密度4.53克／厘米3(20°C)；易溶于水，溶解度为56克／100克水(20°C)，在浓硝酸中溶解度很小。硝酸铅热稳定性较差，加热到470°C时开始分解，生成一氧化铅和二氧化氮,并放出氧气。硝酸铅在水溶液中几乎不发生水解作用。将金属铅溶解在中等浓度硝酸或稀硝酸中，进行蒸发、浓缩和结晶，即得硝酸铅。它是制备其他铅盐的原料，也是实验室中常用的可溶性铅盐。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条