甲醛检测测试及检测方法皮革纺织品与��具甲醛检测测试
根据《室内环境质量及检测标准》中的检测环境要求，目前在测定甲醛常采用以下l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">6种检测方法，分别是：l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">
1、测定工业废气和环境空气中甲醛的乙酰丙酮分光光度法，本法使用与树脂制造、涂料、人造纤维、塑料、橡胶、染料、制药、油漆、制革等行业的排放废气以及做医药消毒、防腐、熏蒸时产生的甲醛蒸汽测定。测量范围在l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">0.5~800mg/m3。l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">
2、测定居住区和公共场所空气大气中甲醛浓度的l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">AHMT(4-氨基l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">-3-联氮l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">-5-硫基l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">-1，l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">2，l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">4-三氮杂茂l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">)分光光度法。测量范围为l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">0.01~0.16mg/m3.
3、适用于公共场所空气中甲醛浓度的酚试剂（l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">MBTH）分光光度法，测量范围为l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">0.01~0.15mg/m3。l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">
4、气相色谱法l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">
5、用于测定纺织品中游离甲醛含量的水萃取法。适用为游离甲醛含量为l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">20mg/kg到l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">3500mg/kg之间的纺织品。l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">
6、用于测定纺织品中释放的甲醛含量的蒸气吸收法。适用为游离甲醛含量为l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">20mg/kg到l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">3500mg/kg之间的纺织品。l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">
目前，甲醛气体的检测方法按精确度划分，大致可分为两种，其一种为精密度测定法（仪器分析法），包括世界卫生组织推荐的高效液体色谱法（l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">HPLC），气相色谱法（l:LANG="EN-US" STYLE=" MSO-FAREAST-FONT-FAMILY: 宋体; MSO-FONT-KERNING: 1.0PT; MSO-ANSI-LANGUAGE: EN-US; MSO-FAREAST-LANGUAGE: ZH-CN; MSO-BIDI-LANGUAGE: AR-SA">DNPH-GC法）及分光光度法等；其二为简易测定法，该法主要用于快速检测，其精确度要求不高。主要有电法学方法，可以显示测定数据，以及检测管方式和测定纸方式，即通过检测气体与指示剂发生法学反应而表现出的颜色变化来测定检测气体浓度。
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