• 固体废物酚类化合物 气相色谱法

    详细信息

     加工定制:是  品牌:浩瀚色谱  型号:XoangyingGC7990  
     测量范围:ppm  测量对象:固体废物酚类化合物  控温范围:400 ℃ 
     功率:2000 w 尺寸:480 mm 重量:46 kg 
     甲醇:固体废物酚类化合物  变压器油:多氯联苯  脂肪酸甲酯:乙酸乙酯  
     *:环氧乙烷  植物油:6号溶剂   
                            Phenolic compounds is one of the important chemical raw materials, is also toxic chemical substances, of all the life can produce toxic effects. Therefore, the detection of water, soil, sediments of the solid waste in these compounds is particularly important. Accelerated solvent extraction is applied to the extraction of organic compounds in soil samples with high extraction efficiency, high speed and low solvent consumption. Phenolic compounds are weakly acidic organic compounds, pretreatment of the ring
               Tengzhou City Xiangying Analysis Technology Co., Ltd. the XiangyingGC7990plus gas chromatography method for the determination of phenolic compounds in solid waste residues. Samples with a mixture of acetone and dichloromethane (2 + 3) as extractant, by accelerated solvent extraction (ASE) after extraction, the k-d concentration device concentrated to 1 ml, and purified by silica gel column purification, acetone and dichloromethane (1 + 9) mixed solution after washing with again the k-d concentration to 1 ml, by quartz capillary gas chromatography column (30 mm * 0.25 mm 0.25 m) separation and determination. The detection limit of phenolic compounds (3S/N) was between 9.60 to 18.5 g.kg-1. The recovery test was carried out on the base of the blank soil sample. The recovery rate was between 108.4% and 74.7%, and the relative standard deviation (n=7) of the measured value was less than 7.5%.
                 酚类化合物是重要的化工原料之一,也是有毒的化学物质,对一切生命体均能产生毒害作用,因此,对水、土壤、沉积物固体废物中此类化合物的检测显得尤为重要。加速溶剂萃取因萃取效率高、速度快、溶剂用量少逐渐应用于土壤样品中有机物的萃取。酚类化合物属弱酸性有机物,预处理环

               滕州市翔鹰分析技术有限公司采用XiangyingGC7990plus气相色谱法测定固体废物中酚类化合物残留量的方法。样品以丙酮-二氯甲烷(2+3)混合液为萃取剂,经加速溶剂萃取仪提取后,在K-D浓缩装置上浓缩至1 mL,经硅胶柱净化后,用丙酮-二氯甲烷(1+9)混合液淋洗后再经K-D浓缩至1 mL,通过石英毛细管色谱柱(30 m×0.25 mm,0.25μm)分离测定。酚类化合物的检出限(3S/N)在9.60~18.5μg.kg-1之间。以空白土壤样品为基体进行回收试验,测得回收率在74.7%~108.4%之间,测定值的相对标准偏差(n=7)均小于7.5%。


    The Chinese technology, analysis technology leader
    The gas chromatography technology, the industry benchmark enterprise
    1 focused on the development of gas chromatograph
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    翔鹰技术,中国分析技术的领跑者
    翔鹰技术,气相色谱行业*企业
    1.专注气相色谱仪的研制
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