【英文标准名称】:StandardTestMethodforDeterminationofOxygenatesinC2,C3,C4,andC5HydrocarbonMatricesbyGasChromatographyandFlameIonizationDetection
【原文标准名称】:用气相色谱法和火焰离子检测法测定C2,C3,C4和C5烃基质中充氧剂的标准试验方法
【标准号】:ASTMD7423-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.D0.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:gaschromatograph;oxygenates
【摘要】:Thedeterminationofoxygenatesisimportantinthemanufactureofethene,propene,1-3butadiene,C4hydrocarbons,andC5hydrocarbons.Alcohols,ethers,aldehydes,andketonesaretraceimpuritiesinthesehydrocarbons.Oxygenatesdecreasecatalystactivityindownstreampolymerizationprocesses.1.1ThistestmethodcoversthegaschromatographicprocedureforthequantitativedeterminationoforganicoxygenatesinC2,C3,C4,andC5matricesbymultidimensionalgaschromatographyandflameionizationdetection.Thistestmethodisapplicablewhenthehydrocarbonmatriceshaveafinalboilingpointnotgreaterthan200x00B0;C.Oxygenatecompoundsinclude,butarenotlimitedto,thoselistedinTable1.Thelinearworkingrangeforoxygenatesis0.50mg/kgto100mg/kg.1.2Thistestmethodisintendedtodeterminethemassconcentrationofeachoxygenateinthehydrocarbonmatrix.Oxygenatecompoundidentificationisdeterminedbyreferencestandardsandcolumnelutionretentionorder.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.TABLE1OxygenatesandTypicalRetentionTimesComponentsRetentionTime(min)Dimethylether
6.18
Diethylether
8.44
Acetaldehyde
8.89
Ethyltert-butylether
10.66
Methyltert-butylether(MTBE)
10.92
Diisopropylether
11.22
Propionaldehyde(Propanal)
12.00
Tertiaryamylmethylether(TAME)
13.19
Propylether
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-propylalcoholandisopropanol
19.20(co-elution)
AllylAlcohol
20.00
Isobutanol,Tert-butylalcohol,Sec-Butanol
20.24(co-elution)
N-butanol
20.84