计算溶液所需的质量、体积或浓度。
BioReagent 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
2-8°C储存,避光。低温运输 。请查阅批次 COA 获取详细规格。
SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。
在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
速效磷是土壤中可被植物吸收的磷组分,包括全部水溶性磷、部分吸附态磷及有机态磷,土壤中速效磷是限制植物生长主要因子之一。用双酸法提取速效磷,用钼锑抗比色法测定,钼蓝与磷酸根生成的物质在 660 nm 处有特征吸收峰,通过测定660nm处吸光度计算速效磷含量。
Available phosphorus refers to the fraction of phosphorus in soil that can be absorbed by plants, which includes all water-soluble phosphorus, a portion of adsorbed phosphorus, and some organic phosphorus. It is one of the primary limiting factors for plant growth in soil. For determination, available phosphorus is extracted using the double acid extraction method, and its content is measured via the molybdenum-antimony colorimetric method. In this reaction, phosphate ions form a phosphomolybdenum blue complex which exhibits a characteristic absorption peak at 660 nm. The available phosphorus content is calculated by measuring the absorbance at this wavelength (660 nm).