HS-SDMEAMDIS为了在寄主植物荔枝中探究引诱荔枝蒂蛀虫的活性物质,首次利用顶空单滴微萃取(HS-SDME)测定了在自然状态下的4种荔枝嫩梢挥发物,并将GC-MS与自动质谱退卷积定性系统(AMDIS)相结合,共解析得到24种化合物。其中,桂味10种,糯米糍12种,妃子笑6种,三月红8种,共有成分为石竹烯。推测诱虫品种里的独有成分如α-姜烯及β-没药烯等
An alternative approach – known as Headspace single-drop microextraction (HS-SDME) – proves to be particularly advantageous in overcoming this limitation. HS-SDME enables the preconcentration of volatile or volatilized analytes [31], making it possible to employ water-soluble solvents and selective...
4种荔枝嫩梢挥发物的HS—SDME/AMDIS分析 12 l 广东 农业科 学 210 2年第1 5期 4种荔枝嫩梢挥发物的 HSSMEAI—D/MD S分析 郭育晖 ,叶 慧娟 ,谷 文祥 (南农业大学理学院/物材料研究所 ,广东广州504)华生162 摘 要: 了在 寄 主植物 荔枝 中探 究 引诱 荔枝 蒂蛀 虫 的活 性 物质 , 次利 ...
采用顶空单液滴微萃取-气相色谱/质谱法(HS-SDME-GC/MS)测定了13个不同产地的柠檬桉叶并结合主成分分析法建立判别模型,采用正交法优化其实验条件.结果表明,单液滴微萃取优化条件为:10 mL顶空瓶中1.0 g样品,60℃顶空40 min,苯甲酸乙酿吸附进而吸收柠檬桉叶中的化学物质,比对NIST 14谱库并结合相关文献鉴定柠檬...
headspace single-drop microextraction technique(HS-SDMEgeochemical exploration for petroleumAll surface geochemical exploration methods for oil and gas are based on the theory that hydrocarbons generated and trapped at depth seep in varying but detectable quantities to the surface,and the main components...
Here we present a simple and novel head space-single drop microextraction-spectro-pipette (HS-SDME-SP) method for the on-site measurement of As species in natural waters. Arsine was generated and separated from the sample matrix by borohydride-based hydride generation, which was further extracted...
Ultrasensitive, simple and solvent-free micro-assay for determining sulphite preservatives (E220–228) in foods by HS-SDME and UV–vis micro-spectrophotometryGómez-OteroE.CostasM.LavillaI.BendichoC.ANALYTICAL AND BIOANALYTICAL CHEMISTRYGdmez-Otero E, Costas M, Lavilla I, et al. Ultrasensi- ...
Headspace single-drop microextraction (HS-SDME)Sulphite preservativesAnalysis of fruitsVegetablesWineUV–vis micro-spectrophotometryA new method based on headspace single-drop microextraction in combination with UV–vis micro-spectrophotometry has been developed for the ultrasensitive determination of banned ...
In this paper, a simple method based on gas chromatographymass spectrometry (GCMS) following microwave-assisted headspace single-drop microextraction (MA-HS-SDME) was developed for the determination of essential oil composition of Prangos uloptera. The MA-HS-SDME parameters including the nature of ...
HS-SPMESDMECold-pressGC-MSQSRRRIVolatile fractions in the essential oils (EOs) obtained from the peels of Citrus sinensis CV. Thomson Navel by head-space solid phase micro-extraction (HS-SPME), single drop micro-extraction (SDME) and cold-press (CP) techniques were analyzed by means of gas...