精油萃取率与萃取压力、萃取时间呈对数函数关系。
The extracting rate of the essential oil was logarithmically increased with extracting pressure and time.
考查了萃取溶剂、萃取时间、盐效应对萃取的影响。
Extraction solvent, extraction time, and salt density were optimized.
考察了萃取溶剂、萃取时间和水浴温度等因素对测定的影响。
Influences of types of extraction solvent, time of extraction and temperature of water bath on the experimental results were investigated and optimized.
微波萃取法可缩短萃取时间，提高提取率，但耗能大，成本高。
Microwave extraction can shorten extraction time, increase extraction yield, but energy consumption and product cost are high.
结果：影响萃取的因素依次为萃取温度、萃取浓度、萃取时间。
Result:It was found that the extracting temperature, the density and time influenced on the extracting factors.
由于萃取时间很短，有一些不希望萃取出来的物质含量就会减少。
Because of the short extraction time, the extraction of unwanted substances such as caffeine and tannin is reduced!
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.
优化了萃取时间、萃取温度、解吸时间、解吸溶液、解吸模式等条件。
The experimental conditions of SPME, such as extraction time, extraction temperature, desorption time, desorption solution, desorption mode and the analytical conditions of HPLC were optimized.
对萃取溶剂及其体积、分散剂及其体积、萃取时间等条件进行了优化。
The influence of extraction parameters including the types and volumes of extraction solvent and disperser solvent as well as extraction time were investigated.
但在萃取时间、萃取液的总量增加的情况下，各重金属萃取效率得到提高。
However, extraction time, increase the amount of liquid case, the heavy metal extraction efficiency is improved.
通过对固相微萃取的纤维头、萃取时间和解吸时间的选择来优化其实验条件。
The solid-phase microextraction conditions were further optimized by carefully selection of the fibers, the extraction time and the desorption time.
方法：分别对橙皮的厚薄度和重量、萃取剂和搅碎萃取时间等进行单因素实验。
Method: Respectively degree of orange peel thickness and weight, extracting agent and extraction time for mixing crushed were performed single factor experiment, respectively.
热水在高压作用下通过咖啡粉；因此萃取时间非常短(水与咖啡粉的接触时间)。
Hot water is forced through the grounds under high pressure, resulting in extremely short extraction time (contact time between the water and the grounds).
主要讨论了溶液酸度、萃取剂用量、盐用量、聚合物浓度、萃取时间等因素的影响。
This paper focuses on the functions of the elements such as the pH of solution, dosage of extraction solvent, dosage of salt, concentration of polymer, time of extraction.
与传统的超声萃取法相比，超声雾化萃取法具有溶剂用量较小、萃取时间较短的优势。
Compared with ultrasonic extraction (UE), the amount of extraction solvent and extraction time can be reduced when the UNE was applied.
分别根据表征参量和重金属在萃取溶液中的含量变化确定最优萃取时间和萃取样液比。
The optimum extraction time and ratio of sample weight to extractant volume were chosen according to the extraction results of indicator parameters and heavy metals in leachates.
对样品的衍生化反应时间、萃取时间和衍生化试剂用量对回收率的影响进行了详细的讨论。
Effects of derivation time, extraction time and amount of derivation agent on the recovery were discussed.
研究了样品萃取量、超声波萃取时间、以及不同萃取溶剂对微量挥发性成分萃取效果的影响。
The effects of sample concentration, ultrasonic extraction time, and different extracting solvent on the extraction of volatile microconstituents were also investigated.
该方法使样品消化过程中的硒损失大为减少，使络合萃取时间变短，提高了硒测定的精密度和准确度。
The method is able to decrease the loss of se in sample decomposition, shorten the time of complexing and extraction and raise accuracy of the determination of se.
应用此模型研究了萃取时间、水样中氯仿的本底质量浓度和高效有机吸附膜厚度等对萃取效率的影响。
By this model, the effects of adsorption time, concentration of chloroform in drinking water and film thickness on the adsorption efficiency were discussed.
探索并确定了冻胶纤维的最佳萃取和干燥工艺，包括最佳萃取时间、最佳萃取浴比、干燥温度和干燥时间等。
The optimum extracting and drying technology of the UHMWPE gel fiber including the optimum extracting time, extracting bath ratio, drying temperature and drying time were studied and determined.
方法：以萃取压力、萃取温度和萃取时间为考察因素，用萃取物总量为衡量指标综合考察胡萝卜的萃取工艺。
Methods: Based on the extract pressure, temperature and time, an observation was made to find the extract technology by taking the total extract as a measure indicator.
萃取时间的长短在一定范围内依赖于CO_2流量以及压力的大小，本试验萃取时间120～150分钟即可达到完全萃取。
Within the operating conditions, the extraction time depended on the extraction pressure and CO2 flow rate. The kiwi fruit seed oil can be extracted fully for 120-150min.
方法在微波功率和萃取时间一定的条件下，分别选用有机溶剂甲醇、乙醇、甲苯、丙酮及环己烷为提取剂，进行间歇性提取。
METHOD Under the same conditions of microwave power and extraction time, methanol, alcohol, toluene, acetone and hexamethylene were used as the extractant to carry out intermittent extraction.
与传统萃取技术相比，ASE技术具有操作简单、萃取效率高、萃取时间短、回收率高、所需溶剂用量少、对环境二次污染小等优势。
Comparing to the typical extraction method, ase is easy to operate with high efficiency and short timing and high recovery rate and less solvent, which decrease the second environmental pollution.
在本论文中，系统地研究了影响萃取率的参数，主要参数包括：惰性气体流速、萃取时间、萃取溶剂类型、样品加热温度和萃取溶剂温度等等。
In this paper, the effecting parameters on the extraction efficiency such as gas flow rate, extraction time, extracting solvent type, temperature of sample and extracting solvent were investigated.
采用超临界CO2萃取技术对番茄籽油进行萃取，经过单因素和优化实验，对不同萃取时间、压力和温度下油的萃取率、脂肪酸组成和品质进行了比较。
Supercritical CO2 extraction (SC-CO2) of oil from tomato seeds was carried out at various extraction temperatures, pressures, and time, through single-factor and optimal experiments.
实验对超声波辅助萃取技术与传统萃取技术进行了对比，得出超声辅助萃取制得的产品中丙酮不溶物含量平均高于传统萃取技术3.3%，萃取时间大大缩短。
The result showed that AI% of ultrasonic assistant extraction technique was higher than traditional extraction technique about 3.3% averagely, and extraction time was shortening obviously.
在单因素试验的基础上，选择萃取投料量、萃取温度、萃取压力、萃取时间四个因素，进行L9(34)正交试验设计，评估了这些因素对葛根素提取率的影响。
Based on single factor experiments, sample amount, extraction temperature, extraction pressure and time were selected for L9 (34) orthogonal tests using the extraction yield of puerarin as index.
在单因素试验的基础上，选择萃取投料量、萃取温度、萃取压力、萃取时间四个因素，进行L9(34)正交试验设计，评估了这些因素对葛根素提取率的影响。
Based on single factor experiments, sample amount, extraction temperature, extraction pressure and time were selected for L9 (34) orthogonal tests using the extraction yield of puerarin as index.
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