文档预览： can occur?) A. Wash with 6 M HNO3 B. Rinse with de-ionized H2O C. Rinse with dilute basic EDTA D. Rinse with de-ionized H2O. SOLUTIONS A. Stock solution of: 0.2% HNO3, 0... 点击下载

文档预览： were prepared daily.Table 1. Preparation of Chemical ModifiersSalt Mass (g) Conc. (g/L) MediumH3BO3 5.72 1 Type I waterNiNO3.6H2O 49.53 10 0.2% HNO3CuSO4.5H2O 39.32 10 ... 点击下载

文档预览： digestion system and the sample digestion was done in accordance with the program given in Table 3. The digested samples were diluted with 0.2% HNO3 and made up to 25 mL ... 点击下载

文档预览： i-butylmethyl ketone (IBMK). Aqueous standard solutions of Cu2+ were prepared by appropri-ate dilution of a stock solution (1 g L–1 Cu in 0.2% HNO3, BDH (UK) standard solutionsfor ... 点击下载

文档预览： 移入50mL容量瓶中，定容。同时进行全程序试剂空白实验。 标准曲线的绘制：吸取镉标准使用液0、0.50、1.00、 2.00、3.00、4.00mL分别于6个50mL容量瓶中，用0.2%HNO3溶液... 点击下载

文档预览： 普通热解凃层石墨管。UW-7500 型超纯水装置，北京东西分析仪器有限公司生产.2. 硝酸，优级纯，北京化工厂生产。3. 铬工作溶液：用0.2%HNO3 稀释 1000mg/L 铬储液至 0.1mg/L... 点击下载

文档预览： 100mL. B：钯改进剂，200mgPd/500mL(0.33gPdCL2置入高压消解罐内，加入 5mLHNO3,160℃下溶解 2 小时后，以超纯水定容至 500mL).4. 铅标准溶液：用0.2%HNO3 稀释 1000... 点击下载

文档预览： multielementstandard (Part Number N930-0244)was used to prepare the referencesolutions. All reference solutions andsamples were acidified using 0.2%(v/v) ultrapure HNO3.The ... 点击下载

文档预览： 澳门特别行政区政府卫生局公共卫生化验所《临床样本采集和递交指引》第27 页，共28 页（四） 采集方法（1） 静脉血：a. 先后用 0.2%HNO3（硝酸）、纯水、碘酒、酒精清洁取... 点击下载

文档预览： remaining carbonaceous material. This solid residue was dissolved in 2 % HNO3 and ... Seven scans were performed for each sample (relative standard deviation (RSD) = 0.2%).... 点击下载