軍事

本文概述了使用铜离子选择性电极（Cu-ISE）通过EDTA滴定对金属离子进行络合滴定和电位测定的方法。该电极采用耐用的环氧树脂轴和晶体膜。由于电极对络合剂不敏感，因此在分析前必须在样品中预先引入预先形成的铜-金属络合物。该方法适用于直接滴定或返滴定，利用EDTA-金属形成常数来确定等当点，并能够在多种不同基质的样品中进行定量分析。

一次离子色谱运行即可完成EPA 300.1方法A部分与B部分分析，饮用水检测快速可靠。

OMNIS客户端/服务器架构通过可扩展的服务器管理提升业务绩效，通过减少跨地点的硬件、能源消耗和维护成本来降低运营开支。

This bulletin deals with the automated determination of mixtures of HNO3, HF and H2SiF6 in the range of approximately 200-600 g/L HNO3, 50-160 g/L HF, and 0-185 g/L H2SiF6 using thermometric titration.Etch acid mixtures containing HNO3, HF and H2SiF6 from the etching of silicon substrates can be analyzed in a sequence of two determinations using the 859 Titrotherm. The first determination involves a direct titration with standard c(NaOH) = 2 mol/L, followed by a back titration with c(HCl) = 2 mol/L. This determination yields the H2SiF6 content plus a value for the combined (HNO3+HF) contents. The second determination consists of a titration with c(Al3+) = 0.5 mol/L to determine the HF content. For freshly made up mixtures of HNO3 and HF containing no H2SiF6, a linked two-titration sequence is employed. Results from the two determinations are used by tiamoTM to yield individual results for HNO3, HF and H2SiF6.

TacticID-1064 ST 手持式拉曼光谱仪能够穿透纸张、塑料、玻璃及多层包装实现物质识别，有效降低接触风险，无需开瓶即可完成检测。