資源描述:
《超高效液相色譜法檢測藥桑椹中1-脫氧野尻霉素》由會員上傳分享,免費在線閱讀,更多相關內容在工程資料-天天文庫。
1、※安全檢測食品科學2015,Vol.36,No.20207超高效液相色譜法檢測藥桑椹中1-脫氧野尻霉素蒲俊松,陳虎,向仲懷,楊光偉*,何寧佳*(家蠶基因組生物學國家重點實驗室,重慶400715)摘?要:建立超高效液相色譜測定新疆藥桑椹中1-脫氧野尻霉素(1-deoxynojirimycin,DNJ)含量的方法。藥桑椹粉經0.05mol/L鹽酸提取,在pH8.5的硼酸鹽緩沖液條件下,氯甲酸-9-芴基甲酯(9-fluorenylmethylchloroformate,FMoC-Cl)與DNJ反應生成具有紫外吸收的絡合物(DnJ-FMoC),然后采用超高效液相色譜-紫外檢測器測定。TM液相
2、色譜條件為CoRTeCSC18色譜柱(2.1mm×100mm,2.7μm),流動相為乙腈-0.5%醋酸(28∶72,V/V),在流速0.6mL/min、柱溫28℃、檢測波254nm條件下檢測。結果表明:DNJ與其他組分分離效果良好,方法檢出限為0.1μg/mL(RSn=3),線性范圍在0.5~20μg/mL,相關系數(r)為0.999970,加標回收率平均為106.4%。精密度實驗、穩(wěn)定性實驗、重復性實驗以及回收率實驗表明,該方法穩(wěn)定可靠,可作為測定藥桑椹中DNJ含量的有效方法。關鍵詞:藥桑;1-脫氧野尻霉素;超高效液相色譜;紫外檢測Determinationof1-Deoxynoj
3、irimycininBlackMulberryFruitbyUltraPerformanceLiquidChromatographyPUJunsong,CHENHu,XIANGZhonghuai,YANGGuangwei*,HENingjia*(StateKeyLaboratoryofSilkwormGenomeBiology,Chongqing400715,China)Abstract:Thecontentsof1-deoxynojirimycin(DnJ)inthefruitsofblackmulberry(MorusnigraL.)weremeasuredusingultrap
4、erformanceliquidchromatography(upLC).Driedfruitswerepulverizedandextractedwith0.05mol/LHCl,andthenincubatedwith9-fluorenylmethylchloroformate(FMoC-Cl)inpH8.5boratebuffertoproducethecomplexDnJ-FMoC.TMTheconcentrationofDnJ-FMoCwasdetectedbyupLCcoupledwithuvdetector.ACoRTeCSC18columnwasusedandthec
5、olumntemperaturewaskeptat28℃.Themobilephasewasacetonitrile-0.5%aceticacidsolution(28:72,V/V)withaflowrateof0.6mL/min.Theuvdetectionwavelengthwas254nm.TheresultsindicatedthatDnJwasseparatedwellwithalinearityrangingfrom0.5to20μg/mL.Thelimitofdetection(LoD)was0.1μg/mLandthecorrelationcoefficient(r
6、)betweenthepeakareaofDnJ-FMoCandDnJconcentrationwas0.999970andtheaveragerecoveryfromspikedsampleswas106.4%.Thetestsforprecision,stability,reproducibilityandrecoveryrateshowedthatthemethodwasstableandreliable,andcouldbeusedasaneffectivemethodforthedeterminationofDnJcontentinblackmulberryfruits.K
7、eywords:MorusnigraL.;1-deoxynojirimycin;ultraperformanceliquidchromatography;uvdetection中圖分類號:TS207.5文獻標志碼:A文章編號:1002-6630(2015)20-0207-04doi:10.7506/spkx1002-6630-201520040[11][12]藥桑(MorusnigraLinn.)屬??粕俸谏7N。藥的多羥基哌啶生物堿。其具有降血糖、降血脂