nitrogen free extract是什么意思

网络释义

用法例句

Chemical features of extracts from source rocks in coal measures with different polarity solvents;

煤系烃源岩不同极性溶剂抽提物基本地球化学特征

There is a great difference in the gross composition and biomarker distribution between chloroform extracts of coal and oil from coal measures, which results in a difficulty in oil-source correlation in a coal-bearing petrolific basin.

煤的氯仿抽提物族组成和生物标志物分布特征与煤系原油存在很大差别,导致含煤沉积盆地中煤系原油的油源确认十分困难。

The progress of the solvent extraction of coal and the characterization methods of extracts were reviewed.

主要介绍了煤的熔剂抽提过程中抽提溶剂的选择 (相似相容 )和煤种、溶剂、煤的岩相组成、抽提条件等影响抽提率的因素 ,以及使用柱色谱、薄层色谱和固相萃取等方法对样品进行前处理 ,并通过质谱、凝胶渗透色谱和液相色谱 -质谱联用仪等现代仪器分析手段测定抽提物的组成、结构等的研究方法 ,揭示了煤中部分有机质的分子结构和分子量分布等性质 ,综述了近年来煤的溶剂抽提及抽提物表征方面的研究进

Study on the preparation of yeast extract and its application to soy fermented mash;

酵母抽提物的制取及入醪发酵生产酱油的试验

Study on the Anti-virus Activity of the Extracts from Plant or Edible Fungus;

植物及大型真菌抽提物抗植物病毒活性的研究

This article studied the addition of spice and sauce tune in the yeast autolysis to prepare extract,and the influences of the temperature、pH、the quantity of sauce tune on autolysis of yeast cell was also discussed.

添加香料、酱曲精进行酵母自溶制备抽提物,试验了温度、pH值、酱曲精加入量对酵母细胞自溶的影响。

Health care effect of extraction in perilla seed coat;

紫苏种子皮抽提物保健作用初探

By means of experiments have been proved extraction of perilla stem and leaves had the capability of antigerm.

本文通过实验证实了紫苏茎叶抽提物具有抗菌能力 ,并将紫苏茎叶用于治疗流行性腮腺炎的临床观察 ,疗效明

methanol-acetone-benzene extract

甲醇-丙酮-苯抽提物

Optimization of microwave-assisted extraction coal and analysis of soluble fraction and residue

微波辅助抽提煤的条件优化及抽提物和残煤的分析

Pulps--Determination of dichloromethane soluble matter

GB/T7979-1987纸浆二氯甲烷抽提物的测定法

Osteoinductive activity of extracts can beincreased by partial purification.

抽提物经初步纯化后，活性有所增强。

Influence on the MUF Adhesion Result by the Benzene-alcohol Extractives from Teak

柚木苯醇抽提物对MUF胶合效果的影响

The research on preparation of meat flavors from yeast extract

酵母抽提物生产猪肉香精的工艺研究

Study on antimicrobial activity of the extracts of Macrocybe gigantean

巨大口蘑子实体抽提物抑菌活性研究

Comparison and analysis of nitrogen compound from two kinds of typical yeast extracts

两种典型酵母抽提物中含氮化合物的比较分析

Spices and condiments-Determination of ethanol--Soluble extract

GB/T12729.10-1991香辛料和调味品醇溶抽提物的测定

RELATIONSHIP BETWEEN ALLELOPATHIC EFFECTS OF Bidens pilosa AQUEOUS EXTRACTS AND RAINFALL

三叶鬼针草水抽提物他感作用与降雨量的关系

Study on the Extracts of Special Coal-Cannel and Its Technology;

我国特种煤——烛煤溶剂抽提物类型与工艺研究

The Effects of Cigarette Smoke Extract on MUCIN 5AC Expression and Its Signal Transduction Mechanism;

香烟抽提物对MUC5AC表达的影响及信号转导机制

Gene Splicing in Vitro Using a Nuclear Extract from Bombyx Mori Fat Body;

基因在家蚕脂肪体细胞核抽提物中的体外剪接

The Induced Discoloration of Robinia Pseudoacacia Treated by Saturated Vapor and Characters of the Extractive

刺槐饱和水蒸气诱发变色及抽提物特性

Study on the Application of Preparing Yeast Extract by Compound Enzymatic Hydrolysis

复合酶解法制备酵母抽提物的应用研究

Analysis of Benzene/Ethanol Extractives from Flesh and Old Eucalyptus urophydis Chips by Py-GC/MS

尾巨桉新旧木片苯/醇抽提物的Py-GC/MS分析

Spectrum analysis on heat-induced discoloration of dioxane extractives from locust(Robinia pseudoacacia) wood.

刺槐二氧六环溶剂抽提物热诱导变色光谱分析

The self-dissolved products were made a kind of powdery yeast extractant by the use of the centrifugation and dry-spraying methods.

将自溶产物离心分离、雾干燥而制成一种粉状酵母抽提物。