用SG-5型直读式测钙仪快速测定石灰土中石灰剂量

Rapid Determination of The Lime Content of Soil-lime with The SG-5 Readable Calcium Tester

本文论证了用直读式测钙仪测定石灰土中石灰剂量的可行性,通过与 EDTA滴定法做多项比较试验,证明直读式测钙仪在测试准确度和精度上与 EDTA 滴定法相同,但比 EDTA 滴定法简便、易操作,可作为石灰剂量的快速测定方法。

This paper discusses the fissibility of determining the lime content of soil-lime with the SG-5 Readable Calcium Tester.Various comparative tests with the RCT and the EDTA titration were made,the results of which proved that the accuracy and the precision of the determinations of RCT arethe same as that of EDTA titration,but the former is simpler than the later,and is easy of operation.The RCT can be used as a rapid test method to determine the lime content of soil-lime.