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用毛细管气相色谱法分析阿尔法-甲基苯乙烯(AMS)的试验方法

标准编号: ASTM D6144-2017
标准名称: 用毛细管气相色谱法分析阿尔法-甲基苯乙烯(AMS)的试验方法
英文名称: Standard Test Method for Analysis of AMS (α-Methylstyrene) by Capillary Gas Chromatography
实施时间:
范围: 1.1 This test method covers the determination of the purity of AMS (α-methylstyrene) by gas chromatography. Calibration of the gas chromatography system is done by the external standard calibration technique. 1.2 This test method has been found applicable to the measurement of impurities such as cumene, 3-methyl-2-cyclopentene-1-one, n-propylbenzene, tert-butylbenzene, sec-butylbenzene, cis-2-phenyl-2-butene, acetophenone, 1-phenyl-1-butene, 2-phenyl-2-propanol, trans-2-phenyl-2-butene, m-cymene, p-cymene, and phenol, which are common to the manufacturing process of AMS. The method has also been found applicable for the determination of para-tertiary-butylcatechol typically added as a stabilizer to AMS. The impurities in AMS can be analyzed over a range of 5 to 800 mg/kg by this method. (See Table 1.) The limit of quantitation for these these impurities averages 4 mg/kg, while the limit of detection averages 1.2 mg/kg. (See Table 1.) TABLE 1 Summary of Precision Data (mg/kg) Compound Repeatability (r) Reproducibility (R) Range Studied         Acetone 1.61 + 0.035*Acetone 0.47 + 1.10*Acetone 0.5 – 26 Cumene −0.46 + 0.031*Cumene 7.88 + 0.19*Cumene 45 – 290 nPropylbenzene (NPB) 2.11 + 0.03*NPB −7.81 + 0.37*NPB 55 – 195 Phenol 1.84 3.65 + 0.58*Phenol 1 – 40 tertButylbenzene (TBB) −1.22 + 0.035*TBB 3.63 + 0.087*TBB 150 – 650 secButylbenzene (SBB) 4.23 + 0.019*SBB 21.60 + 0.25*SBB 200 – 765 mCymene 0.31 + 0.035*mCymene 2.34 + 0.35*mCymene 2 – 50 oCymene 1.63 8.00 29 – 31 pCymene 5.12 15.79 10 – 18 cis-2-Phenyl-2-Butene (CPB) 0.17 + 0.030*CPB 5.39 + 0.11*CPB 50 – 225 trans-2-Phenyl-2-Butene (TPB) 1.57 0.54 + 0.20*TPB 19 – 70 1-Phenyl-1-Butene (PB) 4.00 + 0.018*PB 0.17 + 0.19*PB 0.2 – 735 Acetophenone (AP) –1.09 + 0.15*AP 1.17 + 0.63*AP 15
标准说明:

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方法信息

关联标准

引用标准

  • ASTM D4307;ASTM E691;ASTM E355;ASTM E29;ASTM D6809;ASTM D3437;ASTM E1510;ASTM D4790

替代标准

  • ASTM D6144-2013

被替代标准

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