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Category Ⅰ: lgβ〓=16~19, lgβ〓=28~32, lgβ〓>32,Δ~12, such as solochrome violet RS and pyrocatechol violet, they can be employed for determination of Al〓 at pH 4~5, while at pH 8~9 the complex ability of reagents increased obviously, so it can be used for the determination of Al〓.

类试剂:累积稳定常数较大。lgβ〓=16~19,lgβ〓=28~32,lgβ〓>32,△~12。如酸性媒染紫、邻苯二酚紫。该类试剂在酸性pH4~5下可测定无机单核铝,而在碱性pH8~9下测定总单核铝;由于lgβ〓均较大,易和铝形成螯合能力极强的1∶3配合物。

Objective: To compare the difference of the results of urinary total protein with different proportion of albumin using Pyrogallol Red-molybdate method and benzethonium chloride method.

目的:比较尿白蛋白百分含量不同时用邻苯三酚红钼法和苄乙氯铵法测定尿总蛋白结果的差异。

In the medium of dilute H 2SO 4, the fading reaction of pyrogallol red is oxdized by H 2O 2, which can be catalyzed by Zn 2+ has been studied.

研究了在稀H2 SO4介质中,Zn2 +催化H2 O2 氧化邻苯三酚红的褪色反应。

The influence of copper ion on enzyme activity of hog liver copper zinc superoxide dismutase was monitored by using the pyrogallol autoxidation inhibition assay.

利用邻苯三酚自氧化法监测在磷酸盐缓冲体系中Cu2+对猪肝铜锌超氧化物歧化酶活力的影响,认为Cu2+与猪肝CuZnSOD存在直接相互作用。

Nine new compounds were characterized, and they were: opuntioside Ⅰ(11), 4-ethoxyl-6-hydroxymethyl-α-pyrone (14),--ester (22), 1-butoxyl--malate (24), ethyl α-L-rhamnopyranoside (26), opuntioside Ⅱ(34), kaempferol 7-O-β-D-glucopyranosyl (1→4)-β-D-glucopyranoside (46), methyl α-D-glucopyranoside-6-(methyl 4-malate)-ester (47), and opuntioside Ⅲ(48). Opuntioside Ⅰ,Ⅱ,Ⅲ and 4-ethoxyl-6-hydroxymethyl-α-pyrone belong to the skelecton of α-pyrone.

新化合物分别是:仙人掌苷Ⅰ(11),4-乙氧基-6-羟甲基-α-吡喃酮(14),琥珀酸乙酯--酯(22),L--苹果酸-1-丁酯(24),乙基α-L-吡喃鼠李糖苷(26),仙人掌苷Ⅱ(34),山奈酚7-O-β-D-吡喃葡萄糖基(1→4)-β-D-吡喃葡萄糖苷(46),α-D-吡喃葡萄糖甲苷-6-(苹果酸-4-甲酯)-酯(47),仙人掌苷Ⅲ(48),其中仙人掌苷Ⅰ、Ⅱ、Ⅲ及4-乙氧基-6-羟甲基-α-吡喃酮均为α-吡喃酮骨架类型的新化合物。

XN also did not have any influence on mRNA expression of the enzymes CYP1A2 and quinone reductase.

同时黄腐酚对酶CYP1A2和醌还原酶的基因表达也没有任何影响。

Four 20kg six-month old goats with permanent remen cannula were used to study the effect of three kinds of urease inhibitors acetohydroxamic acid, hydroquinone, yucca extract on nitrogen metabolism, nutrient degradability in rumen and nutrient digestibility.

本研究由4个试验组成,选用安装永久瘘管的6月龄山羊4只,采用4×4拉丁方试验设计,分别饲喂对照组饲粮、乙酰氧肟酸25mg/kg饲粮、丝兰皂甙36mg/kg饲粮、对苯二酚40mg/kg饲粮。

Respectively use chelex 100 resinate,boiling extraction,proteinase K digest/isopropanol precipitation,proteinase K digest/phenol/chloroformextra ction,alkaline lysis,guanidine thiocyanate lysis,guanidine hydrochloride lysis,spin column method to extract Mycobacterium tuberculosis DNA for multiplepolymerase chain eraction.

选择3份含结核分枝杆菌分别为4.325×103、6.857×104、5.356×105 Copies/ml的痰液,分别用Chelex 100树脂法、煮沸法、蛋白酶K消化异丙醇沉淀法、蛋白酶K消化酚/氯仿抽提法、碱裂解法、异硫氰酸胍裂解法、盐酸胍裂解法、离心柱法抽提结核分枝杆菌DNA作多重聚合酶链反应,显色法芯片检测结核分枝杆菌RFP和INH耐药基因。

Based on the cultivar comparative test carried out in 1998—2003,"Chanong NO.1" sprouted very early in spring and the sprouting values were 0.39~0.96 higher than the control cultivar Wannong95, and 0.35~0.57 higher than Fuding -dabaicha .The content of tea chemic material was abundant in fresh leaves and the contents of tea polyphenols, caffeine, amino acids, polysaccharides and resoluble material were 28.22%, 4.81%, 1.51%, 1.55% and 44.82%. Moreover, their ratios were harmonious, resulted in its excellent quality of the made green tea especially in the aspects of aroma and taste."Chanong NO.1" was strong in cold resistance, especially during the spring frost season.

经1998—2003年品种比较实验,结果表明:该品系春季萌发期特早,与对照皖农95相比,同期萌展值大0.39~0.96,与福鼎大白茶相比,同期萌展值大0.35~0.57;鲜叶中生化成分含量丰富,其中多酚含量28.22%、氨基酸含量1.51%,咖啡碱含量4.81%,水浸出物含量44.82%,茶多糖含量1.55%;各成分比例协调,绿茶品质佳,尤以香气和滋味表现突出;抗寒性强,对倒春寒的抗性也强。

Carbon xerogels with high electrical conductivity were prepared with resorcin / formaldehyde via ambient drying technology and were characterized by XRD and four-probe electrical conductivity measurement.

以间苯二酚/甲醛为反应物,采用常压干燥工艺制备了高电导率的炭气凝胶,并用 XRD 和四探针电导率测试仪对其进行了表征。

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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。