jjg700-1999气相色谱仪检定规程

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1、气相色谱仪检定规程JJG70}一1999气相色谱仪检定规程穿小小八中小夺十小小牡6丫人丫了盆‘丫八蕊五JJG700-1999VerificationRegulationof幼.冷.代替JJG700-1990GasChromatographV又今.二岭.今峥卜，.卜，本规程经国家质量技术监督局于1999年05月14日批准，并自1999年09月01日起实施。归口单位:全国物理化学技术委员会起草单位:国家标准物质研究中心本规程委托起草单位负责解释本规程起草人:金美兰(国家标准物质研究中心)徐蓓(国家标准物质研究中心)1528目录1概述·························

2、······································································⋯⋯15302技术要求·································，····················································⋯⋯15303检定条件··························································································⋯15314检定项目和检定方法·········

3、·····························································⋯⋯15315检定结果处理和检定周期····································································⋯⋯1536附录A微量注射器的校准····················································，················⋯⋯1536附录B载气流速的校正···········································

4、····························⋯⋯1537附录C检定证书和检定结果通知书(背面)格式····························，·········⋯⋯1537附录D气相色谱仪检定记录，································································⋯⋯15371529气相色谱仪检定规程本规程适用于新制造、使用中和修理后的以热导(TCD)、火焰离子化(FID)、火焰光度(FPD)、电子俘获(ECD),氮磷(NPD)为检测器的实验室通用气相色谱仪的检定。氢离子化、氦离子化检测器可

5、参照火焰离子化检测器的检定条件进行测试概述气相色谱仪(以下简称仪器)是利用试样中各组分，在色谱柱中的气相和固定相间的分配及吸附系数不同，由载气把气体试样或汽化后的试样带人色谱柱中进行分离，并通过检测器进行检测的仪器。根据各组分的保留时间和响应值进行定性、定量分析。仪器由气路系统、进样系统、色谱柱、电气系统、检测系统、记录器或数据处理系统组成2技术要求2.1技术指标2.1.1新制造仪器的柱箱温度稳定性、程序升温重复性、基线噪声、基线漂移、灵敏度或检Nil限的检定均应符合其说明书的要求。载气流速的稳定性、定量重复性、衰减器换档误差项目的检定，应符合本规程表1中的技术指标。衰3气相色

6、谱仪的主要技术指标技检测器}}}尸lroFIDFPDNP0ECD柑足项目~火载气流速稳定11%1%性(10min)柱箱沮度稳定20.5%05%0.5%0.5%0.5%性(lOmin)3程序升温重复性2%2%2%2%2%4基线噪声50.1mV镇Ix10-"AG5x10-"A镇Ix10aA(O.2.V5基线漂移(Mum)50.2.V簇1x10-"A簇1x10"A<5xIO"A成0.5.V6灵敏度李800mV耐,mg叹5x10"logs(硫)5xl0-'}g/s(氮)7检测限5x10-log/,(5x]0-"ghnl蕊1x10log/,(确)1x100g/s(磷)8定t重复性3%3

7、%3%3%3%9衰减器误差1%1%{I%1%2.1.2使用中和修理后仪器的技术指标，应符合本规程表1中的技术指标。巧303检定条件3.1检定环境和仪器安装要求3.1.1检定环境3.1.1.1环境温度:5℃一351C。3.1.1.2环境相对湿度:20%一85%03.1.1.3室内不得存放与实验无关的易燃、易爆和强腐蚀性的物质，无强烈的机械振动和电磁干扰。3.1.2仪器安装要求3.1.2.1仪器应平稳而牢固地安置在工作台上，电缆线的接插件应紧密配合，接地良好。3.1.2.2气体管路应使用不锈钢管