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PET瓶中乙醛含量的测定毛细管柱
PET瓶中乙醛含量的测定毛细管柱  详细信息：

名称：毛细管柱
规格：30m*0.32mm*0.5um
型号：HH-FFAP

浩瀚色谱（山东）应用技术开发有限公司建立捕集肼自动顶空-气相色谱法测定聚对苯二甲酸乙二醇酯(PET)瓶装水中乙醛含量的方法.取10 mL样品加入4 g氯化钠,样品通过捕集肼富集以提高灵敏度,自动顶空进样器炉温:80℃,取样针温度:130℃,传输线温度:135 ℃,炉温平衡时间:20 min;捕集肼吸附温度:30℃,解吸温度:280℃,循环次数:3;气相进样口温度:200℃,FID温度:200℃,采用HH-ffap色谱柱及在50～100℃温度范围内程序升温进行分离,线性范围在50 μg/L内,检出限为5 μg/L,加入20 μg/L和50 μg/L标准溶液做加收率试验及精密度试验,测得平均回收率为92.9%,相对标准偏差为2.08%～4.01%(n=6).该方法操作简单,快速,灵敏度高,重现性好,可满足于PET瓶装水乙醛含量的检测.

PET瓶中乙醛含量的测定毛细管柱  测试谱图：



Determination of Acetaldehyde Content in PET Bottle Capillary Column
Determination of Acetaldehyde Content in PET Bottle Capillary Column Details:

Name: Capillary Column
Specification: 30m*0.32mm*0.5um
Model: HH-FFAP

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. established a method for the determination of acetaldehyde content in polyethylene terephthalate (PET) bottled water by trapping hydrazine automatic headspace-gas chromatography. Take 10 mL sample and add 4 g chlorine Sodium sulfide, the sample is enriched by trapping hydrazine to improve sensitivity, automatic headspace sampler furnace temperature: 80 ℃, sampling needle temperature: 130 ℃, transmission line temperature: 135 ℃, furnace temperature equilibration time: 20 min; trapping hydrazine Adsorption temperature: 30℃, desorption temperature: 280℃, number of cycles: 3; gas injection port temperature: 200℃, FID temperature: 200℃, using HH-ffap chromatographic column and temperature program in the temperature range of 50～100℃. Separation, the linear range is within 50 μg/L, the detection limit is 5 μg/L, and 20 μg/L and 50 μg/L standard solutions are added for the addition yield test and precision test, and the average recovery rate is 92.9%. , The relative standard deviation is 2.08%～4.01% (n=6). The method is simple, fast, sensitive, and reproducible. It can be satisfied with the detection of acetaldehyde content in PET bottled water.

Determination of Acetaldehyde Content in PET Bottle Capillary Column Test Spectrum: 


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