Determination of Anionic Active Matter Content of Sulfated Polyoxyethylene Hydroxyl Ethers 羟基类聚醚硫酸酯盐类阴离子活性物含量的测定
Humic acid is active matter existed in organic fertilizer, but there is no unified standard method for testing the content of humic acid. 腐植酸是有机质中的活性物质,腐植酸类肥料的测定一直没有统一的方法和标准。
Active matter content there is a difference of each component in the petroleum sulfonate. 各组分石油磺酸盐中的活性物含量存在差异。