基于可见-近红外光谱技术研制了一种便携式硫熏中药材快速检测仪器,主要由锂电池组、DC/DC变换电路、恒流源部分、光源部分、样品池、微型光纤光谱仪、笔记本电脑等组成.阐述了仪器的构成及工作原理,给出了卤钨灯恒流驱动电路原理图,并详细介绍了其工作原理和实测技术参数.在使用分析纯无水乙醇做溶液情况下,对比了正常/硫熏样品浸出液,硫磺浸出液/无水乙醇的透过率光谱,得出含硫浸出液在715 nm和835 nm处具有特征吸收峰,可作为硫磺熏蒸样品检测判据.利用研制的样机对正常/熏硫党参、枸杞样品进行了测试,测试结果表明可区分样品是否经过硫磺熏蒸.
A kind of fast detecting device was developed for Chinese medicinal herbs based on visible and near-infrared spectroscopy technology.It is mainly composed of the lithium battery,DC/DC converter circuit,constant current source,light source,sample pool,micro fiber spectrometer,laptop and so on.This paper describes the components and working principle of the instrument,gives the constant current driving circuit principle diagram of the halogen tungsten lamp,and introduces its working principle and the measured technical parameters in details.The paper compared the normal and sulfur smoked sample extracts spectra,and found sulfur leaching solution in 715 nm and 835 nm has the characteristic absorption peak.It can be taken as the criterion of sulfur fumigation sample detection.Normal / smoked sulfur Codonopsis pilosula and wolfberry fruit samples were tested by the prototype.The test results show the sample with sulfur fumigation can be distinguished.It is expected to be used for sulfur smoked in the medicinal field for rapid screening test of sulfur smoked herds.
[1] 杨菊妹,周永良,陈伟丽.硫磺熏蒸方法之我见[J].中国药业,2013,22(6):120-121.
[2] 陈慧芝,李艳洁.中药材中二氧化硫残留量快速测定方法及其解决办法概述[J].中国医药科学,2014,4(18):15-19. CHEN H Z,LI Y J.Survey of rapid testing method for sulfur dioxide residues in traditional Chinese medicine and analyses to the solutions[J].China Medicine And Pharmacy,2014,4(18):15-19.
[3] 孟杰,王礼均,朱文俊,等.含苦杏仁苷中药材及其饮片二氧化硫超标问题研究[J].中国中医药信息杂志,2016,23(1):82-85.DOI:10.3969/j.issn.1005-5304.2016.01.019 MENG J,WANG L J,ZHU W J,et al.Research on Sulfur Dioxide exceeding standard in chinese herbal medicine and decoction pieces containing amygdalin[J].Chinese Journal of Information on TCM,2016,23(1):82-85.DOI:10.3969/j.issn.1005-5304.2016.01.019
[4] 刘静静,刘晓,李松林,等.硫磺熏蒸中药材及饮片的研究现状[J].中草药,2010,41(8):1403-1406. LIU J J,LIU X,LI S L,et al.Current situation in studies on traditional Chinese medicinal materials and Yinpian by sulfur-fumigated process[J].Chinese Traditional and Herbal Drugs,2010,41(8):1403-1406.
[5] 彭月,李雪莲,银铃,等.中药材硫熏法加工的研究现状及其二氧化硫残留检测方法[J].中药与临床,2012,3(5):5-8. PENG Y,LI X L,YIN L,et al.Study on the research situation of sulfur fumigated processing and detection method of sulfur dioxide residues in traditional Chinese medicine[J].Pharmacy and Clinics of Chinese Materia Medica,2012,3(5):5-8.
[6] WANG Y Q,LIU Y F,CHEN W J,et al.Research on qualitative identifying device of portable sulfur smoked Chinese medicine based on micro fiber spectrometer[Z].The 5th International Symposium on Test Automation & Instrumentation,Beijing,2014.
[7] 中华人民共和国卫生部.GB2760—2011 食品安全国家标准食品添加剂使用标准[S].2011.
[8] 赵铮.硫磺熏蒸中药材问题历史文献考察[J].辽宁中医药大学学报,2012,14(10):154-158. ZHAO Z.A historical literature search of the sulfur fumigation issue of traditional chinese herbal medicines[J].Journal of Liaoning University of Tcm,2012,14(10):154-158.
[9] 车镇涛,宗玉英.离子色谱法测定常用药食两用中药材中的二氧化硫含量[J].中药材,2006,29(5):445-446. CHE Z T,ZONG Y Y.Determinaiton of sulphr dioxie in commouly used chinese herbal medicines with both food and medicine function for health care by ion-chromatographic method[J].Journal of Chinese Medicinal Materials,2006,29(5):445-446.
[10] 陈琴鸣,周海燕,吴迎春,等.改良Monier-Williams法测定药材中SO2的残留量[J].中草药, 2005,36(9):1407-1409.
[11] 王永清,李铎,王硕南,等.金银花硫磺残留便携式快速检测装置研究[J].分析试验室,2015,34(7):862-865.DOI:10.13595/j.cnki.issn1000-0720.2015.0186 WANG Y Q,LI D,WANG S N,et al.Research on portable device for rapid detection of sulfur residue in honeysuckle[J].Chinese Journal of Analysis Laboratory,2015,34(7):862-865.DOI:10.13595/j.cnki.issn1000-0720.2015.0186
[12] 赵花荣,温树敏,冯雅琪,等.利用傅里叶变换红外光谱法鉴别菊花中硫磺残留[J].光谱学与光谱分析,2007,27(6):1110-1112. ZHAO H R,WEN S M,FENG Y Q,et al.Identification of Sulphur residue in chrysanthemum by fourier transform infrared spectroscopy[J].Spectroscopy and Spectral Analysis,2007,27(6):1110-1112.
[13] 杜伟锋,张焱新,张浩,等.基于近红外光谱的浙贝母鲜切和硫熏加工饮片的快速鉴别[J].中药材,2014,37(12):2189-2191.DOI:10.13863/j.issn1001-4454.2014.12.016 DU W F,ZHANG Y X,ZHANG H,et al.Rapid identification of fresh-cut and sulphur fumigation processed fritillaria thunbergii bulb slices based on near-infrared spectoscopy[J].Journal of Chinese Medicinal Materials,2014,37(12):2189-2191.DOI:10.13863/j.issn1001-4454.2014.12.016
[14] 余清华,温志渝,陈刚,等.基于微型光谱仪的微小型快速生化检测仪设计与实验[J].光谱学与光谱分析,2012,32(3):854-857.DOI:10.3964/j.issn.1000-0593(2012)03-0854-04. YU Q H,WEN Z Y,CHEN G,et al.Design and experiment of micro biochemical detector based on micro spectrometer[J].Spectroscopy and Spectral Analysis,2012,32(3):854-857.DOI:10.3964/j.issn.1000-0593(2012)03-0854-04.
