化学研究与应用
化學研究與應用
화학연구여응용
CHEMICAL RESEARCH AND APPLICATION
2014年
3期
395-400
,共6页
龙君%朱晓琼%杨涓%李芳芳%李婧%杨钦兰%肖丹
龍君%硃曉瓊%楊涓%李芳芳%李婧%楊欽蘭%肖丹
룡군%주효경%양연%리방방%리청%양흠란%초단
电子鼻%烟用香精香料%主成分分析%测定参数
電子鼻%煙用香精香料%主成分分析%測定參數
전자비%연용향정향료%주성분분석%측정삼수
electronic nose%tobacco flavors and fragrances%principal component analysis%parameters
本文通过采用电子鼻分析技术对烟用香精香料进行气味测定。寻求电子鼻测定仪器的最佳测试参数,使得对烟用香精香料产品测定时,由仪器引起的误差最小。通过单因素试验对测定过程中的重要影响因素进行考察,并通过主成分分析和判别分析法找出最佳参数。研究结果表明,烟用香精香料的最佳仪器测定参数为:顶空产生温度45℃,进样针进样量200μL,样品量0.5mL,测样时间120s时最佳。
本文通過採用電子鼻分析技術對煙用香精香料進行氣味測定。尋求電子鼻測定儀器的最佳測試參數,使得對煙用香精香料產品測定時,由儀器引起的誤差最小。通過單因素試驗對測定過程中的重要影響因素進行攷察,併通過主成分分析和判彆分析法找齣最佳參數。研究結果錶明,煙用香精香料的最佳儀器測定參數為:頂空產生溫度45℃,進樣針進樣量200μL,樣品量0.5mL,測樣時間120s時最佳。
본문통과채용전자비분석기술대연용향정향료진행기미측정。심구전자비측정의기적최가측시삼수,사득대연용향정향료산품측정시,유의기인기적오차최소。통과단인소시험대측정과정중적중요영향인소진행고찰,병통과주성분분석화판별분석법조출최가삼수。연구결과표명,연용향정향료적최가의기측정삼수위:정공산생온도45℃,진양침진양량200μL,양품량0.5mL,측양시간120s시최가。
In this paper,electronic nose was applied in identifying of different variety of tobacco flavors and fragrances. The principal goal of this study was to obtain the most suitable parameters of electronic nose for analyzing tobacco flavors and fragrances. To do this,testing errors caused by the instrument should be decreased to be the least. Different influencing factors during the measuring process were studied by single factor method. Then,the principal component analysis( PCA) and discriminate factor analysis( DFA) were employed to find out the most suitable parameters. The results indicated the optimal condition were:temperature 45℃,inject volume 200μL,sample volume 0. 5mL,analysis time 120s.