CN105092735A - 一种装修室内空气甲苯含量的测定方法 - Google Patents

一种装修室内空气甲苯含量的测定方法 Download PDF

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CN105092735A
CN105092735A CN201510536110.4A CN201510536110A CN105092735A CN 105092735 A CN105092735 A CN 105092735A CN 201510536110 A CN201510536110 A CN 201510536110A CN 105092735 A CN105092735 A CN 105092735A
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temperature
gas
indoor air
flame detector
hydrogen
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陈生力
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Baohusan Environmental Protection Science & Technology Chengdu Co Ltd
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Baohusan Environmental Protection Science & Technology Chengdu Co Ltd
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Abstract

本发明涉及室内空气污染物检测领域，具体为一种装修室内空气甲苯含量的测定方法，本发明通过采样管采集室内空气，气体通过热解析仪进行解吸，从热解析仪中解吸出的气体进入在线联用进入气相色谱仪中进行分离后用氢焰检测器测定，热解析仪解吸温度为250℃，解吸时间为4min；气相色谱仪柱流量为1mL/min，柱箱起始温度为40℃，保持10min后程序升温到250℃，升温速率为5℃/min，保持1min；氢焰检测器基座温度为250℃，空气、氢气、尾吹气流量分别为350mL/min、35mL/min、30mL/min。本发明通用性强，因此具有广泛的适用性和现实意义。

Description

一种装修室内空气甲苯含量的测定方法
技术领域
本发明涉及室内空气污染物检测领域，具体为一种装修室内空气甲苯含量的测定方法。
背景技术
近年来，随着人民生活质量的提高，室内装饰装修材料用量大幅增加，室内空气中TVOC浓度也随之升高，使得“不良建筑综合症”和“不良建筑物相关性过敏性哮喘”等发病率逐年增高，造成的危害日趋严重，控制室内TVOC水平也显得更加急迫。目前国家对室内涂料的相关标准有GB18582—2008《室内装饰装修材料内墙涂料中有害物质限量》、HJ2537—2014《环境标志产品技术要求水性涂料》和GB24410—2009《室内装饰装修用水性木器涂料》等，以上为有害物质限量标准，主要检测材料自身的有害物质含量，不同于建材材料释放在空气中的污染物量(主要为TVOC)。TVOC是室内空气的主要污染物，由于易溶于油脂，很容易被肺部吸收危害人体健康。当其质量浓度低于0.2mg/m3时，人体无不良反应，超过这个值，可能引起不适，甚至出现头痛或其他神经性伤害。
甲苯作为污染物TVOC主要成分之一，在国内室内装修过程中，常常为主要的污染产物，因此对其进行有效精准的室内含量测定，将有益于进行准确的消除，维护人们的健康。
发明内容
本发明的目的在于现提供一种装修室内空气甲苯含量的测定方法，采用热解吸仪及气相色谱仪等设备进行测定，本发明步骤较为简单，测定结果准确有效，适于推广。
为实现本发明目的，采用的技术方案为：
一种装修室内空气甲苯含量的测定方法，通过采样管采集室内空气，气体通过热解析仪进行解吸，从热解析仪中解吸出的气体进入在线联用进入气相色谱仪中进行分离后用氢焰检测器测定，其特征在于:热解析仪解吸温度为250℃，解吸时间为4min；气相色谱仪柱流量为1mL/min，柱箱起始温度为40℃，保持10min后程序升温到250℃，升温速率为5℃/min，保持1min；氢焰检测器基座温度为250℃，空气、氢气、尾吹气流量分别为350mL/min、35mL/min、30mL/min。
本发明采用热解析仪、气相色谱仪、氢焰测定法，测定装修过程及装修后室内空气甲苯含量，能够与其他组分进行有效分离识别，从而精确测定空气中的甲苯含量。本发明通用性强，因此具有广泛的适用性和现实意义。
具体实施方式
下面通过具体的实施例子做进一步的详细描述。
一种装修室内空气甲苯含量的测定方法，通过采样管采集室内空气，气体通过热解析仪进行解吸，从热解析仪中解吸出的气体进入在线联用进入气相色谱仪中进行分离后用氢焰检测器测定，其特征在于:热解析仪解吸温度为250℃，解吸时间为4min；气相色谱仪柱流量为1mL/min，柱箱起始温度为40℃，保持10min后程序升温到250℃，升温速率为5℃/min，保持1min；氢焰检测器基座温度为250℃，空气、氢气、尾吹气流量分别为350mL/min、35mL/min、30mL/min。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (1)

1.一种装修室内空气甲苯含量的测定方法，通过采样管采集室内空气，气体通过热解析仪进行解吸，从热解析仪中解吸出的气体进入在线联用进入气相色谱仪中进行分离后用氢焰检测器测定，其特征在于:热解析仪解吸温度为250℃，解吸时间为4min；气相色谱仪柱流量为1mL/min，柱箱起始温度为40℃，保持10min后程序升温到250℃，升温速率为5℃/min，保持1min；氢焰检测器基座温度为250℃，空气、氢气、尾吹气流量分别为350mL/min、35mL/min、30mL/min。
CN201510536110.4A 2015-08-28 2015-08-28 一种装修室内空气甲苯含量的测定方法 Pending CN105092735A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832983A (zh) * 2010-05-19 2010-09-15 南昌大学 一种内墙涂料中挥发物质释放的测定方法
US20140183412A1 (en) * 2012-12-31 2014-07-03 Hyundai Motor Company Method for detecting sweet odor from air conditioner, reproducing sweet odor and preparing corresponding sweet odor composition
CN104155384A (zh) * 2014-08-28 2014-11-19 沈阳市宇驰检测技术有限公司 一种苯系物和总挥发性有机物的检测方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832983A (zh) * 2010-05-19 2010-09-15 南昌大学 一种内墙涂料中挥发物质释放的测定方法
US20140183412A1 (en) * 2012-12-31 2014-07-03 Hyundai Motor Company Method for detecting sweet odor from air conditioner, reproducing sweet odor and preparing corresponding sweet odor composition
CN104155384A (zh) * 2014-08-28 2014-11-19 沈阳市宇驰检测技术有限公司 一种苯系物和总挥发性有机物的检测方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
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E. MASSOLD 等: "Determination of VOC and TVOC in Air Using Thermal Desorption GC-MS–Practical Implications for Test Chamber Experiments", 《CHROMATOGRAPHIA》 *
P. WOLKOFF 等: "Indoor VOCs &om Household Floor Dust:Comparison of Headspace with Desorbed VOCs;Method for VOC Release Determination", 《INDOOR AIR》 *
彭清涛 等: "热解吸直接进样气相色谱法分析室内空气中的总挥发性有机化合物", 《化学分析计量》 *
李孜军 等: "室内空气总挥发性有机物检测的热解吸参数优化", 《环境工程学报》 *

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