萃取

A gas chromatography-mass spectrometric method was developed for simultaneous determination of nine organophosphrous pesticide residues in beer .

建立啤酒中9种有机磷农药的固相萃取-气质联用分析方法。

This article compares and evaluates seven basic dye extraction spectrophotometric methods on determination of trace Au by experiments.

通过实验对测定金的7种碱性染料的萃取光度法进行了比较和评价。

This research uses high sensitive piezoelectric sensor for developing a sensitive sphygmograph to detect anthropic pulse and to determine parameters to diagnose physiology of human. From spectrum of pulse, the analysis processes are to determine the high pass frequency used in the analysis, uses the IIR Buttorworth filter to remove the noise, to calculate the Hermite curve for filtering the oscillation parts caused by breathe, then to calculate the parameters in strength, time and angle domains from the processed signal to study their correlation with the physiology of the studied experimenters and compared the results with the machine from the market.

中文摘要本研究采用高灵敏度压电感测元件，发展敏锐的脉搏感测仪器，量测人体手腕脉搏波形，计算其中所包含之参数来探讨与研究人体生理状况相关性的适用性；藉由分析脉搏频谱成份并使用Buttorworth滤波器过滤高频杂讯，再使用Hermite方程式去除手腕低频振动杂讯，由过滤后的脉搏讯号萃取振幅强度、波形上升与下降时间、上升与下降角度等参数，经由统计分析探讨与人体生理之情况相关性，并将所获得指标结果与市售仪器所量测之数据变化进行比较。

ObjectiveTo study the optimal technology of supercritical- CO2 fluid extraction(SFE-CO2) on Combined Spicebush Root .

目的考察超临界CO2 流体萃取乌药有效成分的最佳工艺。

ConclusionSupercritical fluids extraction method is simple for the activities of Combined Spicebush Root , and useful for the large scale production .

超临界CO2 流体萃取技术用于乌药有效成分提取，方法简单，适用于工业生产。

Function description: Natural plant formula, which is alcohol-free, contains spirea extract, which could effectively regulate oil secretion of T-type area, minimize pores. Ample HA moisturizing factor forms water magnetic field in the skin, effectively supplies and locks in water. Keep balance between oil and water, leave skin comfortable and clear.

功能说明：天然植物配方不含酒精，蕴含绣线菊萃取精华可有效调节T区油脂分泌，紧实毛孔，丰富HA保湿因子在肌肤内部形成水磁场，有效供给并锁住水分，维持水油平衡，令肌肤怡然清爽。

The results showed that over 95 % of cordycepin was in the sporophore after supercritical extraction and the supernate of alcohol sedimentation, which ensured the intermediate products containing cordycepin from massive loss before preparation.

结果证明，95％以上的虫草素仍分布在超临界萃取后的子实体及其醇沉的上清液中，保证了含虫草素的中间产物未在制备前大量流失。

The effects of balance time, stirring speed and ionic strength of medium on extraction efficiency of squalene were investigated.

研究了萃取平衡时间、搅拌速度、介质离子强度、pH值、以及解吸温度、解吸时间等条件对测定效果的影响。

Objective: To investigate the flavor substances in Portunus trituberculatus and Squilla Oratoria that came from Bohai Sea place of production.

目的：利用固相微萃取技术分析渤海产地三疣梭子蟹和口虾蛄肌肉中的风味化合物。

Results: SPME was effective to analyze the flavor substances in Portunus trituberculatus and Squilla Oratoria, 20 and 15 main volatile compounds were identified respectively by comparing their mass spectra with those contained in the NIST mass spectral database; among these compounds most of them were carbonyl and alcohols.

结果：固相微萃取技术有效提取了三疣梭子蟹和口虾蛄肌肉中的呈味物质，经过NIST质谱数据库和文献对照，分别确定了20种和15种主要呈味物质，大多是一些酸类、酯类、醛类、醇类等化合物。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失