萃取比

萃取比是优化串级萃取工艺设计中的重要参数。

Extraction factor is one of the most important parameters in optimum design of countercurrent extraction technology .

以寻求串级萃取最低生产成本的工艺条件为最优化目标，通过将萃取工艺参数与随之会发生变化的生产成本关联，建立了分馏萃取最低成本优化萃取比方程。

Based on the optimization goal searching for extraction parameters of minimun production cost , a novel equation for calculating optimized extraction factor of minimum production cost in fractional extraction was proposed .

二甲苯&2,6一二氯吲哚酚萃取比色法多用于测定水果、蔬菜中维生素C的含量。

Xylene and 2 , 6-dichloro-indophenol are normally used in extraction-spectrophotometric determination of vitamin C in fruits and vegetables .

结果超临界CO2萃取比常规萃取出膏率高，且有效成分含量高。

Results SCF-CO2 extracts out the lotion rate high than the routine , and the content of effective composition is high .

用液体CO2萃取比用超临界CO2萃取的出油率要高得多；

The results showed that ( 1 ) the yield of star anise oil extracted by liquid CO_2 is much higher than that by supercritical CO_2 ;

并将该法与4-AAP萃取比色法进行了比较。

This method was compared with an official 4-aminoantipyrine ( 4-AAP ) method .

吸附在CCX上的Ag经灰化法解脱后在pH值为33的CH3COOH（乙酸）CH3COONa（乙酸钠）缓冲溶液中，以Au试剂液珠萃取比色法进行测定。

Ag in the CCX disembarrassed by ashing in the CH_3COOH ( acetic acid ) - CH_3COONa ( acetic natrium ) buffering fluid that pH is 3.3 , and tested by Au reagent by excerpt colorimetry .

在盐酸介质中，Ti~（4+）与DAPM和SnCl2生成三元络合物[Ti（DAPM）3]（SnCl2）4.可用1,2-二氯乙烷萃取比色测定微量钛。

In a medium of hydrochloric acid , Ti (ⅳ) can form a ternary complex [ Ti ( DAPM ) _3 ] ( SnCl_2 ) _4 with DAPM and SnCl_2 . micro amount of Titanium can be determined by Extraction-Colorimetric Method with 1,2-dichloroethane .

金试剂一磷酸三丁酯液珠萃取比色法测定化探样品中金

Gold Reagent-TBP Liquid Ball Extraction Colorimetric Determination of Gold in Geological Samples

液珠萃取比色法测定化探样品中的金、银

Analysis of trace gold and silver in geochemical samples in extraction colorimetry

酸性色素萃取比色法测定盐酸普鲁卡因注射液的含量

Determination of procaine hydrochloride injection by acidic pigment extraction colorimetry

回流装置酸消化萃取比色法测定大蒜中锗

Colorimetric determination of germanium in garlic by acid digestion under reflux and extraction

本文探讨了直接测定三价铁的萃取比色法。

An extracting colorimetric method of the direct determination of ferric iron has been investigated .

萃取比色测定微量锑的研究（Ⅱ）&碘绿法

Studies on the extractive photometric determination of microgram amounts of antimony ⅱ . iodine green as reagent

采用柱色谱法分离复方地芬诺酯片中的盐酸地芬诺酯，再用离子对萃取比色法测定。

Diphenoxylate hydrochlride was separated from compound diphenoxylate tablets by column chromatography , and determined by ion-pair extraction spectrophotometry .

当分离系数大于3时，计算采用最优萃取比精确方程更为合适。

If the separation factor is over three , the precise equation is more suitable for calculating the optimized extraction factor .

化探样品中金、银、铜的野外现场快速联合测定黄原酯棉富集分离金试剂液珠萃取比色法

Separation of Gold , Silver , Copper in Geological Samples with Xanthated Cotton Fiber and Their Colorimetric Determination with Liquid Beads Extraction

研究了活性炭纤维滤布富集分离的条件和解脱方法，并利用微波溶样、液珠萃取比色法测定矿石中的金。

Moreover , the paper researched the assay of gold in ores with the method of sample solving with microwave-drop extraction colorimetry .

本文叙述了用活性炭色层柱分离、亚硫酸钠解吸、TMK-异戊醇萃取比色测定痕量金的方法。

The optimum condition of the separation enrichment by column chromatography with activated charcoal and sodium sulfite strip and extraction of trace gold with TMK-isoamyl alcohol has been studied .

考察了酸度和模拟高放废液（HLLW）的稀释倍数对萃取分配比的影响。

The influences of acidity and dilution factor of simulated HLLW are studied .

温度对萃取分配比的影响表明所有的萃取反应都是放热反应，升高温度对萃取反应不利。

The effect of temperature on the extraction distribution ratios showed that all of the extraction reaction is exothermic reaction .

由此表明加盐萃取精馏比普通的萃取精馏在提高溶剂效率方面具有明显的优势。

According to the result , the salt effect extractive distillation was better than ordinary extractive distillation in improving solvent efficiency and saving energy .

萃取时间比萃取压力的影响更为显著，表明络合反应控制着该过程。

And the extraction time has more obvious influence on the process than the pressure , so that the chelating reaction is a rate-control step .

具有相同碳原子数、带支链的脂肪醇对青霉素的萃取能力比直链醇强，平衡后的有机相水含量下降。

Aliphatic alcohols with branched chain had a little stronger ability to extracting penicillin than straight chain alcohols with the same number of carbon atoms , and water content in organic phase was reduced at the same time .

研究结果表明，超临界CO2萃取－精馏比单纯的超临界CO2萃取操作对小麦胚芽油中维生素E的浓缩、色素及胶质的脱除效果更显著。

The results indicated that effect of supercritical CO 2 extraction distillation on concentration of V E and remove of pigment and gum of wheat germ oil is more obvious than supercritical CO 2 extraction .

钨萃取平衡分配比的研究

Determination of Solvent Extraction Equilibrium for Tungsten

除油旋流器压降比的数学模型钨萃取平衡分配比的研究

THEORETICAL AND EXPERIMENTAL RESEARCH ON PRESSURE DROP RATIO PREDICTION MODEL OF DE-OILING HYDROCYCLONE Determination of Solvent Extraction Equilibrium for Tungsten

N-1923萃取偶氮胂Ⅲ比色法测定矿石中低含量钍

Extraction Colorimetric Determination of Micro Amounts of Thorium in Ores with N-1923 and Arsenazo ⅲ

乳状液型液膜法是一种先进的萃取技术，它比单纯的溶剂萃取法效率更高。

The liquid surfactant membrane is a kind of new separation technology with higher efficiency than extraction .

在实验中，对萃取溶剂、固液比、红外功率和提取时间进行了优化选择，在最佳的提取条件下实现了三组分的定量分析。

The parameters of extraction solvent , solid / liquid ratio , Infrared power and irradiation time were optimized .