CAJ | 학술논문

对烟用香精香料中的NO3-和NO2-采用振荡萃取，建立了快速检测烟用香精香料中的NO3-和NO2-的离子色谱法(IC)。香精香料试样中的NO3-和NO2-在振荡条件下用水、二氯甲烷萃取,经0.22μm滤膜净化，柱流速为1.0 mL/min，采用浓度梯度洗脱方式，IonPac AS11阴离子分析柱、电导检测器检测，并采用该方法测定了15个烟用香精香料样品。结果表明：①NO3-和NO2-的检出限、回收率、相对标准偏差（RSD）及线性范围分别为0.010和0.006μg/mL，95.4%和90.6%，3.42%和4.61%，0.06~6.0μg/mL和0.02~2.0μg/mL；②测定的15个烟用香精香料样品中NO3-的检出率53.3%，NO2-的检出率40.0%。该方法具有快速、灵敏、简便等优点，适合于烟用香精香料样品中NO3-和NO2-的测定。
대연용향정향료중적NO3-화NO2-채용진탕췌취，건립료쾌속검측연용향정향료중적NO3-화NO2-적리자색보법(IC)。향정향료시양중적NO3-화NO2-재진탕조건하용수、이록갑완췌취,경0.22μm려막정화，주류속위1.0 mL/min，채용농도제도세탈방식，IonPac AS11음리자분석주、전도검측기검측，병채용해방법측정료15개연용향정향료양품。결과표명：①NO3-화NO2-적검출한、회수솔、상대표준편차（RSD）급선성범위분별위0.010화0.006μg/mL，95.4%화90.6%，3.42%화4.61%，0.06~6.0μg/mL화0.02~2.0μg/mL；②측정적15개연용향정향료양품중NO3-적검출솔53.3%，NO2-적검출솔40.0%。해방법구유쾌속、령민、간편등우점，괄합우연용향정향료양품중NO3-화NO2-적측정。
A method for simultaneously determining NO3- and NO2-in tobacco casing and flavors was developed based on ion chromatography(IC) and oscillation extraction. NO3-and NO2-in casing and flavors were dealt with oscillation extraction by utilizing water and dichloromethane. They were purified through membrane ( 0.22μm) with column flow rate of 1 mL/min.and radient elution was performed. The samples were separated on an Ion Pac AS 11 column and detected with an electrical conductivity detector. Results showed that:①Limits of detection of NO3-and NO2- were between 0.010 and 0.006μg/mL,with recovery rate ranging from 90.6%to 95.4%and RSDs from3.42%to 4.61%, and linear range of 0.06 to 6.0μg/mL and 0.02 to 2.0μg/mL,respectively.②NO3-and NO2-in 15 tobacco casing and flavor samples were detected with detection rate of 53.3%and 40.0%. The method was proved to be applicable in determining NO3-and NO2-in tobacco casing and flavors as timesaving, accurate and simple to process.