基准物质

实验室常用基准物质的微波干燥实验

Study of Drying primary Standard Substances by Microwave in Lab

利用本热量计测定量热基准物质三羟甲基氨基甲烷（Tris）和盐酸的反应热，实验结果与文献值一致，精度为±0.2%。

The reaction heat of trihydroxymethyl - aminomethane ( Tris ) , as a calorimetric standard substance , and hydrochloric acid was determined with an accuracy of ± 0.2 % .

通过调整钼测试溶液pH值，使钼在溶液中存在形态一致（MoO24-），并选用高纯试剂三氧化钼为基准物质标定硝酸铅标准溶液，提高方法的准确度。

The existing morphology of molybdenum in solution is identical by adjusting molybdenum to test pH value of solution . Lead nitrate standard solution is demarcated by choosing high-purity reagent MoS_2 as datum with high accuracy .

基准物质燃烧红外吸收法测定硅中硫红外光弹观测仪

Determination of Sulfur in Silicon by Standard Substance Combustion Infrared Absorption

本文对用聚乙二醇、卵清蛋白和牛血清白蛋白作为基准物质测定超滤膜截留性能的方法进行了比较，并对其可靠性进行了探讨。

The comparison between the methods to determine the retention ratio of the ultrafiltration membrane using PEG , Egg Albumin and serum albumin of ox was reported and the feasibility of these methods has been studied in this paper .

探讨了利用氧弹量热计测定固体物质分解焓的方法，准确称取一定量的固体样品和基准物质，均匀混合后压片，放入氧弹量热计燃烧，记录燃烧前后时间和氧弹量热计温度变化数据。

This paper discussed the determination method of solid decompound enthalpy with oxygen bomb calorimeter . After the solid sample and standard substance were accurately quantified and uniform mixed , and the pressed piece was put into the oxygen bomb and combustion .

研究建立300～67OK固体比热容国家基准&标准物质α-Al2O3的摩尔热容

Establishment of Primary Heat Capacity Standard for the Range of 300 to 670 K & Molar Heat Capacity of α - Alumina

本基准测定的标准物质α-Al2O3摩尔热容舒平值与美国国家标准局发布的数据比较，在300～670K温度范围其一致性在0.1%以内。

The smoothed data of the certified reference material a-alumina are in agreement with those of the NIST within ± 0.1 % .