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用气相色谱法和火焰离子检测法测定C2,C3,C4和C5烃基质中含氧化合物的试验方法

标准编号: ASTM D7423-2017
标准名称: 用气相色谱法和火焰离子检测法测定C2,C3,C4和C5烃基质中含氧化合物的试验方法
英文名称: Standard Test Method for Determination of Oxygenates in C2, C3, C4, and C5 Hydrocarbon Matrices by Gas Chromatography and Flame Ionization Detection
实施时间:
范围: 1.1 This test method covers the gas chromatographic procedure for the quantitative determination of organic oxygenates in C2, C3, C4, and C5 matrices by multidimensional gas chromatography and flame ionization detection. This test method is applicable when the hydrocarbon matrices have a final boiling point not greater than 200 °C. Oxygenate compounds include, but are not limited to, those listed in Table 1. The linear working range for oxygenates is 0.50 mg/kg to 100 mg/kg. TABLE 1 Oxygenates and Typical Retention Times Components Retention Time (min) Dimethyl ether 6.18 Diethyl ether 8.44 Acetaldehyde 8.89 Ethyl tert-butyl ether 10.66 Methyl tert-butyl ether (MTBE) 10.92 Diisopropyl ether 11.22 Propionaldehyde (Propanal) 12.00 Tertiary amyl methyl ether (TAME) 13.19 Propyl ether 14.00 Isobutylaldehyde 14.10 Butylaldehyde 14.50 Methanol 14.91 Acetone 15.39 Isovaleraldehyde 16.00 Valeraldehyde 16.10 2-Butanone (MEK) 17.14 Ethanol 17.51 N-propyl alcohol and isopropanol 19.20 (co-elution) Allyl Alcohol 20.00 Isobutanol, Tert-butyl alcohol, Sec-Butanol 20.24 (co-elution) N-butanol 20.84 1.2 This test method is intended to determine the mass concentration of each oxygenate in the hydrocarbon matrix. Oxygenate compound identification is determined by reference standards and column elution retention order. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established
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关联标准

引用标准

  • ASTM D4175;ASTM D6849;ASTM D1265;ASTM D1835;ASTM D6299;ASTM D6300;ASTM E355;ASTM E177

替代标准

  • ASTM D7423-2016e1

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