查询词典 thin layer

The corrosion product in 10-3 Pa S2 + 10-15 Pa O 2 was only a very thin surface layer of yttrium oxysulfide and an internal oxi dation zone of yttrium.

在10-3 Pa硫压下，合金没有形成外层硫化钴，仅在表面形成较薄的Y的硫氧化物，其下为Y的内氧化区。

The ethanol extract was dissolved with HCl, the acidic extract was basified to pH9-10 with NH_3-water and extracted with CHCl_3 to give total alkaloids. five alkaloids were isolated with column chromatography and preparative thin-layer chromatography, and three of them were identified as dehydrocorydaline、 corynoline and dihydrosanguinarine on the basis of spectral analysis MS,~1H-NMR,~(13C-NMR and physicochemical properties. All of them were found for the first time from this plant.

为研究灰绿黄堇的化学成分，本文将灰绿黄堇乙醇提取物采取酸提取、碱游离后萃取的方法得到总生物碱，然后利用柱色谱、制备薄层色谱等方法分离、纯化了灰绿黄堇中5种生物碱，并利用IR、MS、~1H-NMR、~(13)C-NMR等方法鉴定了其中的3种，分别为去氢紫堇碱、紫堇灵、二氢血根碱，均为首次在此植物中发现。

The antimicrobial test and researched was done on wide distillation of different solvents on Terpenoid, polarity separation of ethanol distillable substance, thin layer chromatography of different polarities and distillation of amylase. The results showed that the active substance distilled by 95% ethanol and V methanol: toluene=3:1 had stronger antimicrobial activity on Agaricus blazei Murrill. The antimicrobial activity of ethyl acetate was stronger than wide distilling substance with ethanol, but the water part has not antimicrobial effect. Two straps of ethyl acetate phase（Rf0.57、Rf0.63）(0.1g/ml)had stronger antimicrobial activity on Agaricus blazei Murrill, the antimicrobial zone on Pseudomonas was 19.3mm. The bacteriostatic activity of chromatography strap of water phase was rather weaker, the water solution (0.5g/g) of amylase had better effect on pathogenic fungus of Agaricus blazei Murrill, its antimicrobial zone on Aspergillus niger, Citrinin, Trichoderma viride were 10.8 mm, 7.9 mm, 5.3 mm.

通过对日本凹顶藻以不同溶剂的粗提、乙醇提取物的极性分离、不同极性的薄层层析和多糖的提取，进行抗菌试验的研究，发现95%乙醇和V甲醇：甲苯为3∶1的提取的活性物质具有较强的抗姬松茸的病原细菌活性，乙酸乙酯相对病原细菌的抑菌强于乙醇的粗提物，而水相基本无抑菌效果，乙酸乙酯相的两个带（Rf0.57、Rf0.63）浓度为0.1g/ml具有较强抗姬松茸病原细菌的活性，对假单孢杆菌抑菌圈达到19.3mm，水相层析带的抑菌活性较弱，多糖的粗提物配成0.25g/g的水溶液对姬松茸病原真菌有较好的抑菌效果对黑曲霉、桔青霉和绿色木霉的抑菌圈分别达到10.8 mm、7.9 mm、5.3 mm。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

To resolve this behavior, only the surface business card printing and membership card making to set to print in ink that is not on the surface without worrying about the colour, there are three ways: the first one is a drumlike complex members'meeting, Bopp/business card printing and membership card making/PE, such a structure you need to have special line cost more per bag fee in order to achieve $ 0.10/only, the second film structure is the PE/business card printing and membership card making/PE, such a structure common packaging equipment can also be filling, but cost more, each bag shall be $/only 0.08, the third option is the-tape-PE/business card printing and membership card making/PE structure in the original film, that is, the members'meeting membrane business card printing and membership card upon completion of the making of the operation, the business card printing and membership card making surface salivate a layer of transparent with thin-film, this is our company according to actual usage of the product structure specially developed.

给彻底处置这一不隐象，只有不兵暗地制卡和会员卡制作改不败边印，油不朱不在暗地也不离供给安心掉色，办法有不一栽：第一栽是复不合奶膜布局为BOPP边/制卡和会员卡制作/PE边，这样的布局需有附带灌装摆设，不败本也较矮，每一个袋子用度给到达0.10元/只把握），第二栽膜的布局是PE/制卡和会员卡制作/PE，这样的布局别致灌装摆设也可灌装，但不败本还是较矮，每袋须0.08元/只把握，第不一栽办法是流延PE/制卡和会员卡制作/PE布局不厚膜，即在原奶膜制卡和会员卡制作完不败后，再增增一道工序，在制卡和会员卡制作背流涎一层透明的较不厚的不厚膜，这是我们公司根据客户本质搁置环境出格开不收的产物布局。

Methods Radix Astragall,Radix Scutellariae,Flos Lonicerae,Radix Isatidis and Dryopteris Crassirhizomae in the mixture were identified by thin-layer chromatography and AstragalosideI was determined by TLC-scanner.

采用TLC法对本品中黄芪、黄芩、金银花、板蓝根及贯众进行了定性鉴别，并采用双波长薄层扫描法测定了黄芪甲苷的含量。

Content, strong radiant heat resistance, thin-layer insulation, waterproofness, radiation resistance, strong tensile resistance and flexibility under all temperatures, as well as durableness and energy-saving.

经过不断努力，现已推广应用的&CC-100瓷层绝热节能液体材料涂层系统&和&纳米气凝胶保温毛毡&是开创现代科技领域应用的技术先锋，在国内外市场均引起广泛关注。

Results: The level of serum trace elements of Cu, estradiolum and testosterone in model group was obviously higher than that of control group, the ovarian follicle of model group was ectatic and the granular layer was very thin. There were abundant all-growth period follicle and corpus luteum in ovary in normal rats.

结果：与时照组比较，模型组大鼠血清Cu、E2、T含量明显增加(P.01)；卵巢组织形态学观察：对照组可见各期发育卵泡及黄体形成，模型组卵泡呈囊性扩张，颗粒细胞层明显减少，大量卵泡闭镇。

Methods:the thin layer scanning method was used to determine the content of ellagic acid.

目的：考察石榴皮中鞣花酸的提取工艺。

Methods:the thin layer scanning method was used to determine the content of ellagic acid.

选用4因素3水平正交表l9(34)，以薄层扫描法测定鞣花酸含量，考察4个因素（溶剂类型，提取时间，提取次数，溶剂用量）、3个水平对鞣花酸提取率的影响。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。