HJ 1271-2022 HJ 1271-2022 Determination of Formic Acid, Acetic Acid and Ethanedioic Acid in Particulate Matter by Ion Chromatography for Environmental Air particulate matter
HJ 1271-2022 HJ 1271-2022 Determination of Formic Acid, Acetic Acid and Ethanedioic Acid in Particulate Matter by Ion Chromatography for Environmental Air particulate matter
Basic Information
Scope
This standard specifies the ion chromatography method for determining formic acid, acetic acid, and oxalic acid in ambient air particles. This standard is applicable to the determination of formic acid, acetic acid, and oxalic acid in ambient air and air particles at unorganized emission monitoring points. The minimum detection limits for formic acid, acetic acid, and oxalic acid in this standard are 0.8 μg to 1.9 μg. When the ambient air sampling volume is 144 m3 (actual state), the extraction liquid volume is 100 ml, and the injection volume is 200 μl, the detection limits of this method are 0.006 μg/m3 to 0.02 μg/m3, and the determination limits are 0.024 μg/m3 to 0.08 μg/m3. When the air sampling volume at unorganized emission monitoring points is 6 m3 (standard state), the extraction liquid volume is 100 ml, and the injection volume is 200 μl, the detection limits of this method are 0.2 μg/m3 to 0.4 μg/m3, and the determination limits are 0.8 μg/m3 to 1.6 μg/m3. For details, see Appendix A.