弱碱性

Environment-friendly bast fiber film is buried in the ground floor of different soil pH value to study degradation and changes in the type and quantity of micro-organisms, to explore environment-friendly bast fiber film degradation relevance between micro-organisms and soil pH value. There are three types of soil, for example, weak acid soil, neutral soil, weak alkaline, in which film is buried. It is to determinate of weight loss and changes of quantity of micro-organisms around.

为了探明麻地膜降解性能与土壤pH和土壤微生物的相关性，利用生石灰调节土壤pH，将土壤pH调节为弱酸性、中性、弱碱性3个不同的水平，将麻地膜埋入3种不同的土壤中，定期测定其失重率及其周围土壤微生物种类和数量的变化。

Body, and please don't use brusher to wipe the body either.

请勿用汽油、稀释剂、清洁剂、碱性或弱碱性洗衣粉以及蜡等物质擦拭机体，也请勿用刷子来擦洗机身。

P28 紫色 Formation of a peptide bond 肽键形成–4侧链具有的反应–形成二硫键-其它反应 Tyr,His,Arg Review Isoelectric Point Titration滴定 of an amino acid 滴定 Gly幻灯片 18 His Lys Glu Reaction of amino acids Section 4 Protein isolation and purification 蛋白质分离及提纯 Working With Proteins Experimental techniques for protein analysis and characterization Purification steps A cell contains many types of proteins In the lab we want to isolate a single protein for experiments Purification steps We first grow cells or isolate tissues that contain the protein of interest We break open the cells to produce a crude extract Use centrifugation离心 to separate soluble from insoluble material We fractionate 分离 the protein mixture based on properties of such as size, charge affinity or solubility.

丹磺酰氯与氨基酸反应生成荧光性质强和稳定的磺胺衍生物，用于多肽链NH 用于多肽链 3末端氨基酸的标记烃基化反应(1) 2，4-二硝基氟苯2，4-dinitrofluorobenzene，二硝基氟苯(二硝基氟苯 DNFB也叫做试剂。DNFB在弱碱性溶液也叫做Sanger试剂试剂中与氨基酸发生取代反应，生成黄色化合物二硝基二硝基苯基氨基酸(dinitro phenyl amino acid， DNP氨基酸氨基酸)苯基氨基酸氨基酸(2)苯异硫氰酸酯(phenylisothiocyanate， PITC)在弱碱性条件下，与氨基酸反应在弱碱性条件下，生成苯乙内酰硫脲 PTH衍生物，(phenylthiohydantoin， PTH)衍生物，即PTH-氨基酸，此反应又称之Edman反应，该反应是蛋白质或多肽氨基酸序列测定常用的反应。

Thus theoretically, weakly acidic drugs are more readily a orbed from an acid medium than are weak bases.

因此，从理论上讲，弱酸性药物在酸性介质中比弱碱性药物更易吸收。

It is suggested that quite a lot of the Be, Co, Cu and Pb could be originated from the syngenetic stage during which the coal-forming plants grew. The strongly seawater-effected peat bog with the reductive and alkaline water could be in favor of the relative enrichment of the Be, Co and Cu, and the faintly seawater-effected bog with the slightly reductive and alkaline water could be in much favor of the enrichment of the Mn, Mo, Ni, P, Pb, Th, Tl and U.

认为凯里煤中相当一部分Be、Co、Cu和Pb起源于成煤植物生长期间的同生阶段；受海水影响强烈的还原偏碱性沼泽环境有利于Be、Co和Cu的相对富集，受海水影响微弱的弱还原性和弱碱性环境条件更有利于Mn、Mo、Ni、P、Pb、Th、Tl和U的富集。

Thephenomenon did not occur when weak organic acids were added above solutionbecause of the weak base of pyrrolidine ring.

由于〓吡咯烷上的吡咯是弱碱性，与弱的有机酸不能形成盐，故在〓吡咯烷的衍生物中加入有机弱酸，其紫外光谱不发生兰移，这一点与我们的实验结果是一致的。

UV-Vis spectra were measured in weak acidity, neutrality and weak base, the absorption spectra were changed with a large red shift in weak base because of intramolecular charge transfer and azophenol-quinone tautomerism.

并且测量了它们在弱酸性，中性和弱碱性条件下的紫外吸收光谱，讨论了吸收光谱与分子结构之间的关系，认为分子内的电荷转移和醌式互变是碱性条件下吸收光谱发生明显变化的根本原因。

High-sulfur hot spring water in ancient description: hot spring water from 2500 meters underground granite, dolomitic limestone and gneiss crust between the ancient hot springs, hot spring water has been formed last million years, year-round water temperature of 50-60 ℃, a liter water the sulfur content of more than 2 mg in the rich oxygen, silicon, aluminum, iron, calcium a variety of ancient trace mineral elements, PH value of 7 are weak acid, such as lactic acid in yogurt not only offer intestinal alkaline substances in the change into a weak acid substances, but also have anti-bacterial material substances, inhibition of intestinal bacteria breeding corruption and activities, thereby reducing the intestinal harmful substances on human health has a very good role.

高硫磺远古温泉水质介绍：温泉水来自地下2500米花岗岩、白云质灰岩和片麻岩之间的地壳温泉，温泉水已经形成上亿年，又称&远古温泉&，常年水温50-60℃，每升水中的硫磺含量在2毫克以上，富含氧，硅，铝，铁，钙等多种远古微量矿物元素，PH值7属于弱酸性，如酸奶中的乳酸不但能使肠道里的弱碱性物质转变成弱酸性物质，而且还能产生抗菌物物质，抑制肠道中的腐败菌的繁殖和活动，从而减少肠道内的有害物质，对人体具有非常好的保健作用。

In general, the chrome-included solution with the rain shows alkalescent, so it shows significant practical value to electrolyze and reduct Cr6+ in alkalescent media directly to dispose the extraction of chromium residues to disposal the chromium waste pollutant.

一般情况下，雨水淋淅出的含铬液体呈弱碱性，因此，直接在弱碱性介质中采用电解还原Cr~(6+)来处理铬渣浸出液，以治理铬渣污染具有实际意义。

Through authority's test, after water stored in energy mug, it can reach 45.79 Hz but under the standard of 50Hz.(50~100 Hz is subset water; Over 100 Hz is big hydrone group water); It can also change acid, alkalescence water into alkaline water. Moreover, Biologic activity function energy sheets have very good function of adsorption and degradation, which will help to improve the taste of drinks and cleanse water quality.

经权威部门测试，水经能量杯盛装之后，半高宽达到45.79Hz，低于50Hz的标准（50~100Hz为小分子团水，大于100Hz为大分子团水）；能将酸、碱性水转变成弱碱性水，而且生物活性功能能量片有很好的吸附和降解功能，对改善饮水的口感，净化水质起到良好作用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷