HJ 1267-2022 Active Industry standards-Environmental protection

HJ 1267-2022 Determination of six phenoxy carboxylic acid herbicides and mecoprop in water using high performance liquid chromatography

Publish Date: 2022-12-12 Implement Date: 2023-06-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: HJ 1267-2022

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Environmental protection

ICS Name: Environmental protection, health, and safety (vocabulary)

Publish Date: 2022-12-12

Implement Date: 2023-06-15

Scope

This standard specifies the high-performance liquid chromatography method for determining phenoxyacetic herbicides and mesotrione in water. This standard is applicable to surface water, groundwater, domestic sewage, industrial wastewater, and seawater for the determination of mesotrione (3,6-dichloro-2-methoxybenzoic acid), 2,4-D (2,4-dichlorophenoxyacetic acid), 2-methyl-4-chlorophenoxyacetic acid, 2,4-D propionic acid (2- (2,4-dichlorophenoxy) - propionic acid), 2,4,5-T (2,4,5-trichlorophenoxyacetic acid), 2,4-D butyrate (4- (2,4-dichlorophenoxy) - butyrate), and 2,4,5-T propionic acid (2- (2,4,5-trichlorophenoxy) - propionic acid). The method uses liquid-liquid extraction with a sampling volume of 250 ml and a set volume of 1.0 ml. The detection limit of the method is 0.04 μg/L to 0.06 μg/L, and the determination limit is 0.16 μg/L to 0.24 μg/L. When using direct purification with a sampling volume of 5.0 ml and a set volume of 1.0 ml, the detection limit of the method is 0.5 μg/L to 0.8 μg/L, and the determination limit is 2.0 μg/L to 3.2 μg/L. For details, please refer to Appendix A.