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重铬酸钾容量法测定煤中腐植酸含量计算式中含碳比(即换算因数)的测定方法是提取比较纯的腐植酸,用容量法测定若干个腐植酸的含碳量,同时用重量法测定若干个腐植酸含量,换算为无水无灰基,然后用容量法测定的腐植酸含碳量与重量法测定的
Calculation of humic acid content in coal by potassium dichromate volumetric method The determination method of the carbon content (ie, conversion factor) in the formula is to extract relatively pure humic acid, determine the carbon content of several humic acids by the volumetric method, Determination of a number of humic acid content, converted to anhydrous ash-free base, and then measured by volumetric method humic acid carbon content and gravimetric method of determination