Method for measuring iron/calcium ratio in iron-calcium core-spun yarn
A determination method and a core-coated wire technology, applied in the field of chemical analysis, can solve the problems of difficult observation of the EDTA titration end point, many calcium particles in the reduced iron powder, complicated operation steps, etc., to achieve stable complexes, simple drugs, and separation good effect
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[0097] Example 1:
[0098] Table 1 below lists the comparison between the method of the present invention and the prior art.
[0099] Table 1: Comparison results between the method of the present invention and the method disclosed in patent CN103115920A
[0100]
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[0101] Example 2:
[0102] Table 2 below lists the measurement results of the iron-calcium ratio in the iron-calcium cored wire using the method of the present invention and the method disclosed in the prior art.
[0103] Table 2: The method of the present invention and the method disclosed in patent CN103115920A measure the result of iron-calcium ratio in iron-calcium cored wire
[0104]
[0105]
[0106] It can be seen from Table 2 above that the data obtained by using this method to determine Fe:Ca in the iron-calcium cored wire sample is accurate and reliable.
[0107] It can be seen from the comparison results of Example 1 and Example 2 that the Fe:Ca content in the iron-calcium cored wire sample can be accurately determined by the method of the present invention. In addition, the method is simple to operate, fast, and easy to master, requires simple equipment and medicine, low measurement cost, low pollution, high detection efficiency, and can meet the needs of rapid production in
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