广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
16期
56-57
,共2页
甲醛%白菜%高效液相色谱
甲醛%白菜%高效液相色譜
갑철%백채%고효액상색보
methanol: cabbage%HPLC
近期有某些商家为了防止白菜腐烂,在白菜上喷洒甲醛溶液来保鲜,但是甲醛对人体危害极大.所以建立一种检测白菜中的甲醛的方法藏非常重要。喷洒甲醛的白菜样品通过2,4-二硝基苯肼(DNPH)衍生后进行HPLC检测。结果表明,白菜中甲醛的喷洒浓度在-0.02μg/mL时,都可以通过该方法检测。
近期有某些商傢為瞭防止白菜腐爛,在白菜上噴灑甲醛溶液來保鮮,但是甲醛對人體危害極大.所以建立一種檢測白菜中的甲醛的方法藏非常重要。噴灑甲醛的白菜樣品通過2,4-二硝基苯肼(DNPH)衍生後進行HPLC檢測。結果錶明,白菜中甲醛的噴灑濃度在-0.02μg/mL時,都可以通過該方法檢測。
근기유모사상가위료방지백채부란,재백채상분쇄갑철용액래보선,단시갑철대인체위해겁대.소이건립일충검측백채중적갑철적방법장비상중요。분쇄갑철적백채양품통과2,4-이초기분정(DNPH)연생후진행HPLC검측。결과표명,백채중갑철적분쇄농도재-0.02μg/mL시,도가이통과해방법검측。
Recent have some businessmen in order to prevent Chinese cabbage decay, and in the cabbage sprayed methanal solution to keeping fresh, but methanal great harm to human body, so building a detection methods of the cabbage methanal is very important. Spray the formaldehyde cabbage samples through the S derivative 2,4-dinitrophenylhydrazine(DNPH) derivative after the HPLC detection. The results showed that the concentration of formaldehyde in Chinese cabbage spraying in -0.02 μg/mL, by this method detection.