PET瓶中乙醛含量的測定毛細管柱，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，醫(yī)療器械

PET瓶中乙醛含量的測定毛細管柱
PET瓶中乙醛含量的測定毛細管柱  詳細信息：

名稱：毛細管柱
規(guī)格：30m*0.32mm*0.5um
型號：HH-FFAP

浩瀚色譜（山東）應用技術(shù)開發(fā)有限公司建立捕集肼自動頂空-氣相色譜法測定聚對苯二甲酸乙二醇酯(PET)瓶裝水中乙醛含量的方法.取10 mL樣品加入4 g氯化鈉,樣品通過捕集肼富集以提高靈敏度,自動頂空進樣器爐溫:80℃,取樣針溫度:130℃,傳輸線溫度:135 ℃,爐溫平衡時間:20 min;捕集肼吸附溫度:30℃,解吸溫度:280℃,循環(huán)次數(shù):3;氣相進樣口溫度:200℃,FID溫度:200℃,采用HH-ffap色譜柱及在50～100℃溫度范圍內(nèi)程序升溫進行分離,線性范圍在50 μg/L內(nèi),檢出限為5 μg/L,加入20 μg/L和50 μg/L標準溶液做加收率試驗及精密度試驗,測得平均回收率為92.9%,相對標準偏差為2.08%～4.01%(n=6).該方法操作簡單,快速,靈敏度高,重現(xiàn)性好,可滿足于PET瓶裝水乙醛含量的檢測.

PET瓶中乙醛含量的測定毛細管柱  測試譜圖：



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: