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LY/T 2670-2016: Technical regulation for measurements of volatile organic compounds emitted by plants
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| LY/T 2670-2016 | English | 139 |
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Technical regulation for measurements of volatile organic compounds emitted by plants
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LY/T 2670-2016
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Basic data | Standard ID | LY/T 2670-2016 (LY/T2670-2016) | | Description (Translated English) | Technical regulation for measurements of volatile organic compounds emitted by plants | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B40 | | Classification of International Standard | 65.020.40 | | Word Count Estimation | 6,679 | | Date of Issue | 2016-07-27 | | Date of Implementation | 2016-12-01 | | Regulation (derived from) | State Forestry Administration Announcement No.17 of 2016; Industry Standard Announcement No.16 of 2016 (No.204) | | Issuing agency(ies) | State Forestry Administration | LY/T 2670-2016: Technical regulation for measurements of volatile organic compounds emitted by plants
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(Technical specification for determination of volatile organic compounds in plant emissions)
ICS 65.020.40
B40
People's Republic of China Forestry Industry Standard
Technical regulations for determination of volatile organic compounds in plants
Released on.2016-07-27
Implementation of.2016-12-01
State Forestry Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by Beijing Forestry University.
This standard is under the jurisdiction of the State Forestry Administration.
This standard was drafted. Beijing Forestry University.
The main drafters of this standard. Yu Xinxiao, Lun Xiaoxiu, Chen Jungang, Chen Lihua, Zhang Zhenming, Niu Jianzhi, Chen Jing, Jia Guodong, Bi Huaxing,
Fan Dengxing, Liu Xuhui, Molly, Xu Xiaoyu, Baole, Sun Fengbin.
Technical regulations for determination of volatile organic compounds in plants
1 Scope
This standard specifies the method for the collection and determination of volatile organic compounds emitted by plants.
This standard applies to the determination of volatile organic compounds emitted by plants in the territory.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
HJ644 Determination of ambient air volatile organic compounds - Adsorption tube sampling - Thermal desorption/Meteorological chromatography - Mass spectrometry
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Plant volatile organic compounds biogenic volatileorganiccompoundsemittedfromplants
Volatile organic matter released by plants into the atmosphere.
4 Materials and reagents
4.1 Activated carbon granules. high temperature baking method, continuous heating at 160 ° C for more than 5 h in an oven, naturally cooled in an oven, dense
Sealed storage.
4.2 Adsorption tube. stainless steel, filled with TenaxTA adsorbent. The adsorption tube is immersed and washed with a solvent such as methanol for more than 5 hours, and the adsorbent
Tenax-TA was soaked in acetone (100 mL/g) for 12 h, then eluted with 20 mL of acetone at a concentration of 99.5%, and the concentration was 99.5%.
50 mL of methanol was eluted; after drying, the adsorbent was filled, and each tube was filled with 0.12 g of Tenax-TA, and finally with 80 mL/min of high-purity nitrogen.
Dry at 180 °C. Or use other products with the same features.
4.3 Gas drying tower. filled with activated carbon granules baked at high temperature, blocked with glass wool at both ends.
4.4 Connecting hose. Silicone tube or Teflon hose, soaked in chemically pure ethyl acetate, methanol and n-hexane solution for 5h.
Finally, it is naturally dried to no smell.
4.5 Aging and preservation of the adsorption tube.
4.5.1 The newly purchased adsorption tube or the adsorption tube after collecting the high concentration sample needs to be aged.
4.5.2 Before sampling, use the analytical tube processor to purge the tube under the purge of 100 mL/min nitrogen (purity ≥99.9992%).
It was activated at 270 ° C for 120 min, and the contents were blown away.
4.5.3 Immediately after aging of the adsorption tube, seal both ends and cover a layer of tin foil paper. The wrapped adsorption tube is placed in a dryer equipped with activated carbon
Inside, the dryer is stored in a refrigerator at 4 ° C for 10 days, and no organic solvent can be placed in the refrigerator.
4.6 n-Hexane (C6H14). Analytical grade.
4.7 α-pinene (C10H16). purity of 97% or more.
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