How to measure soil organic matter quickly with spectrophotometer by decomposing soil organic matter into small amount of dichromate and sulfuric acid

摘要

The present invention relates to a method for measuring the soil organic matter content in a spectrophotometer, the color of the decomposition solution is obtained by oxidizing the soil with a small amount of dichromic acid (K ₂ Cr ₂ O ₇ ) and sulfuric acid (H ₂ SO ₄ ) The present invention relates to a method for measuring soil organic matter content by measuring the absorbance with a spectrophotometer, and the present invention can reduce the amount of kali dichromate used as compared to the Turin method, which is conventionally used as a standard method in Korea. The content of chromium, which is a water pollutant in the water, can be significantly reduced, and the analysis operation can be easily improved because the existing method causes the reaction to be reacted on the heating plate at room temperature, and the existing method is ferrous sulfate ((Fe (NH ₄ )). ₂ (SO ₄ ) ₂ · 6H ₂ O) solution must be titrated but this process is omitted in the present invention. Not only can the amount of reagents and waste solution be significantly reduced in measuring the amount, but the analysis can be simplified and the analysis time can be significantly reduced.