Standard No.:	DB37/T 3314-2018
English Name:	Determination of Alginic Acid in Fertilizer- Spectrophotometric
Chinese Name:	肥料中海藻酸含量测定 分光光度法
Chinese Classification:	G20    Basic standards and general methods on chemical fertilizers
Professional Classification:	DB    Provincial Standard
ICS Classification:	71.040.40 71.040.40    Chemical analysis 71.040.40
Source Content Issued by:	Shandong Bureau of Quality and Technical Supervision
Issued on:	2018-06-12
Implemented on:	2018-7-12
Status:	valid
Target Language:	English
File Format:	PDF

本标准规定了采用硫酸-咔唑分光光度法和间羟基联苯分光光度法测定肥料中海藻酸含量的试验方法。
本标准适用于以海藻为原料加工制造的海藻酸肥料。
硫酸咔唑显色法不适用于含硝酸根、葡萄糖等中性糖类物质及其它在比色过程中产生干扰的海藻酸肥料。
间羟基联苯显色法不适用于含硝酸根、腐植酸类物质及其它在比色过程中产生干扰的海藻酸肥料。