土壤芳基硫酸酯酶来自于土壤微生物，能酶促土壤有机硫化物转化为植物可吸收的无机态硫，在硫素的生物化学循环和植物的硫营养代谢中具有重要的作用，是反映土壤质量的一个重要生物学指标。该产品提供了一种简单、方便、快速的 S-ASF 活性检测方法，适用于土壤样本。其原理是 S-ASF 能够催化对-硝基苯硫酸钾生成对-硝基苯酚，后者在 410 nm 有特征光吸收。
Soil aryl sulfatase, originating from soil microorganisms, catalyzes the conversion of organic sulfur compounds in the soil into inorganic sulfur that can be absorbed by plants. It plays an important role in the biogeochemical cycling of sulfur and in the sulfur nutrition metabolism of plants, serving as a key biological indicator for assessing soil quality. This product provides a simple, convenient, and rapid method for detecting S-ASF activity, suitable for soil samples. The principle is that S-ASF catalyzes the hydrolysis of potassium p-nitrophenyl sulfate to produce p-nitrophenol, which has a characteristic light absorption peak at 410 nm.
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