AMPEROMETRIC MERCURIMETRIC TITRATION OF SULFHYDRYL GROUPS IN BIOLOGICALLY IMPORTANT SUBSTANCES - AT THE ROTATED PLATINUM WIRE ELECTRODE AS INDICATOR ELECTRODE
AMPEROMETRIC MERCURIMETRIC TITRATION OF SULFHYDRYL GROUPS IN BIOLOGICALLY IMPORTANT SUBSTANCES - AT THE ROTATED PLATINUM WIRE ELECTRODE AS INDICATOR ELECTRODE
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DOI：
10.1021/ac60086a025
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发表时间：
1954-01-01
影响因子：
7.4
通讯作者：
MORREN, L
中科院分区：
文献类型：
--
作者：
KOLTHOFF, IM;STRICKS, W;MORREN, L
结论液体对β粒子的吸收可用于HJ‘Drogen或重元素含量变化不大的二元液体混合物或混合物密度的非常准确的测定。在p=1.00g/ml时，可连续记录此类液体的密度，其精度为±0.0002克/毫升。结合独立的密度测量，β粒子吸收测量可用于测定液态烃混合物中化学键合氢的重量百分比，绝对精度为0.1%。如果对氧、硫等较重元素的含量进行小的校正，该方法也可用于其他有机液体中氢的测定。同样，如果氢含量和密度单独测定，则可以测定一种元素，例如硫或氯。因此，β粒子吸收装置有望成为液体的连续植物分析和分析实验室应用的有用仪器。
CONCLUSIONSThe absorption of beta particles by liquids may be used for very accurate determination of density of binary liquid mixtures or mixtures where the content of hj'drogen (chemically bonded) or heavy elements does not vary significantly. The density of such liquids may be recorded con-tinuously with an accuracy of±0.0002 gram per ml. at p= 1.00 gram per ml. In combination with an independent density measurement, beta particle absorption measurements may be used to determine the weight per cent of chemically bonded hydrogen in liquid hydrocarbon mixtures with an accuracy of 0.1% absolute. The method may also be used to determine hydrogen in other organic liquids if small correc-tions are applied for the content of oxygen, sulfur, and other heavier elements. Similarly, deter-mination of one element, as for example sulfur or chlorine, may be made if the hydrogen content and density are meas-ured independently. The beta particle absorption apparatus thus promises to become a useful instrument forboth con-tinuous plant analysis of liquids and in analytical laboratory applications.