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高效液相色谱法测定油性涂料中甲醛含量 被引量:3

Determination of Formaldehyde in Oily Paint by HPLC
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摘要 建立2,4-二硝基苯肼柱前衍生,高效液相色谱法测定油性涂料中甲醛含量的方法。前处理采用四氢呋喃直接溶解涂料,过滤,取适量滤液与2,4-二硝基苯肼衍生后进行液相分析。选用Kromasil 100-5 C18色谱柱(250 mm×4.6 mm i.d,5μm),乙腈-水(65:35,V/V)为流动相,利用二极管阵列检测器,检测波长355 nm。该方法具有很好的重现性和线性关系,在0.05~5 mg.L-1浓度范围内,相关系数均达到0.995以上,加标回收率为96.2%~103.5%,相对标准偏差小于1.5%。该方法简便、准确、灵敏度高。 A reverse-phase high-performance liquid chromatographic(HPLC) method was developed for determination of formaldehyde in oily paint.The samples were dissolved by tetrahydrofuran,filtered and derivatived with 2,4-DNPH.Kromasil 100-5 C18 column(250 mm×4.6 mm i.d,5 μm) was used,the mobile phase consisted of acetonitril-water(65:35,V/V),the UV detector was set at 355 nm.The coefficients were above 0.995 at the range of 0.05~5 mg/L.The recovery was 96.2%~103.5% and RSD was less than 1.5%.This method was simple,rapid and sensitive.
出处 《广州化工》 CAS 2011年第8期105-106,共2页 GuangZhou Chemical Industry
关键词 甲醛 油性涂料 衍生 2 4-二硝基苯肼 formaldehyde oily paint derivation 2 4-dinitrophenylhydrazine
作者简介 作者简介:王昌泽(1977-),男,工程师,主要从事有机合成及分析研究工作。E—mail:analysis205@sina.com.
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参考文献6

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二级参考文献7

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