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HJ 799-2016: Ambient Air - Determination of the water soluble anions (F-, Cl-, Br-, NO2-, NO3-, PO43-, SO32-, SO42-) from atmospheric particles - Ion chromatography
HJ 799-2016
HJ
ENVIRONMENTAL PROTECTION STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Ambient air - Determination of the water soluble anions
(F-, Cl-, Br-, NO2-, NO3-, PO43-, SO32-, SO42-) from
atmospheric particles - Ion chromatography
环境空气 颗粒物中水溶性阴离子(F-, Cl-, Br-, NO2-, NO3-, PO43-,
ISSUED ON. MAY 13, 2016
IMPLEMENTED ON. AUGUST 01, 2016
Issued by. Ministry of Environmental Protection
Table of contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Principles of the method ... 5 
5 Interference and elimination ... 5 
6 Reagents and materials ... 6 
7 Instrument and equipment ... 10 
8 Samples ... 11 
9 Analysis steps ... 12 
10 Results calculation and presentation ... 14 
11 Precision and accuracy ... 15 
12 Quality assurance and quality control ... 16 
13 Waste disposal ... 17 
14 Precautions ... 17 
APPENDIX A (Normative) Method detection limit and lower measurement limit
... 18 
APPENDIX B (Informative) Method precision and accuracy ... 19 
Appendix C (Informative) Anion standard solution chromatogram ... 22 
Foreword
This standard is formulated for the purpose of implementing the Law of the
People's Republic of China on Environmental Protection and the Law of the
People's Republic of China on the Prevention and Control of Atmospheric
Pollution, protecting the environment, safeguarding human health, AND
regulating the determination method of water-soluble anions in ambient
airborne particles.
This standard specifies the ion chromatography method for the determination
of eight water-soluble anions (F-, Cl-, Br-, NO2-, NO3-, PO43-, SO32-, SO42-) in the
ambient airborne particles (TSP, PM10, PM2.5, dustfall, etc.).
This standard is firstly issued.
Appendix A of this standard is a normative appendix, AND Appendix B and
Appendix C are informative appendixes.
This standard is formulated under the organization of the Department of
Science, Technology and Standards of the Ministry of Environmental Protection.
The main drafting organizations of this standard. Gansu Provincial
Environmental Monitoring Center Station.
The verification organizations of this standard. College of Chemistry and
Chemical Engineering of Xiamen University, Center for Analysis and Testing of
Guangzhou University, Environmental Research Center of Chinese Academy
of Sciences, Jiayuguan City Environmental Monitoring Station, Environmental
Monitoring Station of Hulunbeir of Inner Mongolia, Guangdong Polytechnic of
Environmental Protection Engineering, Jingmen Environmental Protection
Monitoring Station.
This standard was approved by the Ministry of Environmental Protection on
May 13, 2016.
This standard has been implemented since August 1, 2016.
As for this standard, the Ministry of Environmental Protection is responsible for
its interpretation.
Ambient air - Determination of the water soluble
anions (F-, Cl-, Br-, NO2-, NO3-, PO43-, SO32-, SO42-) from
atmospheric particles - Ion chromatography
Warning. The chemical reagents used in the experiment such as sodium
fluoride and sodium nitrite are harmful to human health. WEAR protective
equipment in accordance with the regulations, and AVOID contact with
skin and clothing.
1 Scope
This standard specifies ion chromatography for the determination of water-
soluble anions (F-, Cl-, Br-, NO2-, NO3-, PO43-, SO32-, SO42-) in ambient airborne
particles.
This standard applies to the determination of 8 kinds of water-soluble anions
(F-, Cl-, Br-, NO2-, NO3-, PO43-, SO32-, SO42-) in the ambient airborne particles
(TSP, PM10, PM2.5, dustfall, etc.).
As for the filter sample of ambient airborne particles, when the sampling volume
is 60 m3 (standard state), the extract volume is 100 ml, AND the sample
injection volume is 25 μl, the detection limit of this method is 0.010 μg/m3 ~
0.085 μg/m3, AND the lower detection limit is 0.040 μg/m3 ~ 0.340 μg/m3. As for
the dustfall sample, when the sample injection amount is 0.100 g, the extract
volume is 100 ml, AND the sample injection volume is 25 μl, the detection limit
of this method is 0.006 μg/g ~ 0.051 μg/g, AND the lower detection limit is 0.024
μg/g ~ 0.204 μg/g. As for details, SEE Appendix A.
Note 1. This method is also applicable to the analysis of samples collected from
particles such as dust aerosols and dust storms in special weather conditions.
2 Normative references
The following documents or the terms thereof are referenced in this standard.
For undated references, the valid version of the referenced document applies
to this standard.
GB/T 15265 Ambient air - Determination of dustfall - Gravimetric method
GB/T 15432 Ambient air - Determination of total suspended particulates -
Gravimetric method
HJ 93 Specifications and test procedures for PM10 and PM2.5 sampler
HJ 618 Determination of atmospheric articles PM10 and PM2.5 in ambient
air by gravimetric method
HJ/T 194 Manual methods for ambient air quality monitoring
HJ/T 374 Technical requirement and test procedures for total suspended
particulates sampler
HJ/T 375 Technical requirement and test procedures for ambient air sampler
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1 Ambient air atmospheric particles
It refers to the ambient air atmospheric particles collected on the filter
membrane the sampling device (including TSP, PM10, PM2.5, etc.), OR the
ambient air dustfall collected through such collection devices as dust cylinder.
3.2 Water-soluble anions
It refers to the anions of the ambient air atmospheric particles which are
dissolved in deionized water without adding chemical reagent. The water-
soluble anions determined by this method include F-, Cl-, Br-, NO2-, NO3-, PO43-,
SO32-, SO42-.
4 Principles of the method
The ambient air atmospheric particle samples collected is, after being subjected
to ultrasonic extraction by deionized water AND exchange and separation by
anion chromatographic column, detected by a suppressed conductivity detector.
MAKE qualitative determination based on the retention time; and MAKE
quantitative determination based on peak height of peak area.
5 Interference and elimination
5.1 For the 2 kinds of anion with similar retention time, when the concentration
of the 2 kinds of anions is greatly different that it affects the determination of the
6.17 Nitrate ion standard stock solution. ρ (NO3-) = 1000 mg/L.
Accurately WEIGH 1.6304 g of potassium nitrate (6.5); DISSOLVE it into
appropriate amount of water; TRANSFER it into a 1000 ml volumetric flask;
USE water to dilute it to the mark; MIX it uniformly. TRANSFER it into the
polyethylene bottle; KEEP it sealed at below 4 °C in the dark; AND it can be
preserved for 6 months. It may also purchase the commercially available
certified standard materials.
6.18 Phosphate ion standard stock solution. ρ (PO43-) = 1000 mg/L.
Accurately WEIGH 1.4316 g of potassium dihydrogen phosphate (6.6);
DISSOLVE it into appropriate amount of water; TRANSFER it into a 1000 ml
volumetric flask; USE water to dilute it to the mark; MIX it uniformly. TRANSFER
it into the polyethylene bottle; KEEP it sealed at below 4 °C in the dark; AND it
can be preserved for 1 month. It may also purchase the commercially available
certified standard materials.
6.19 Sulfite ion standard stock solution. ρ (SO32-) = 1000 mg/L.
Accurately WEIGH 1.5750 g sodium sulfite (6....