查询词典 acid phosphate

The myristic-2-hydroxy-3-propane sulfonic acid sodium salt was synthesized from sodium bisulfite, epichlorohydrin, sodium phosphate and myristic acid. The influence factors of temperature, amount of catalyst, reaction time and reactant ratio on conversion were studied.

以亚硫酸氢钠、环氧氯丙烷、磷酸钠和肉豆蒄酸等为原料，合成了肉豆蒄酸－2-羟基－3-磺酸钠丙酯，探索了反应温度、催化剂、反应时间、反应物物质的量比等因素对合成的影响。

Choosing heteropolyacid tungsten phosphoric acid as catalyst, single and double octyl phosphate was synthesized with phosphoric acid and iso-octanol.

以磷酸和异辛醇为原料、以杂多酸钨磷酸为催化剂合成了磷酸单、双辛酯。

The paper shows the ideal synthetic condition for preparing the novel amphoteric surfactant of monoalkyl phosphate by long-chain fatty acid, diethanolamine and polyphosphoric acid .

本文研究了以脂肪酸、二乙醇胺、聚磷酸为原料合成一种新型的两性磷酸酯盐表面活性剂的方法。

Phosphate rock is mixted with sulfuric acid and with revycled first-wash acid in a premixer.

磷矿在一个预混合槽中与硫酸以及循环回的第一洗涤酸进行混合。

The results showed that intermidiate 1, 2-propanediol-sebacate of low relative molecular mass was synthesized with toluene-p-sulfoinc acid as catalyst, benzene as watercarrying agent, and of mole ratio of sebacic acid to 1, 2-propanediol of 1:4. The glass-transition temperatures of PPSC were below 0 ℃ which confirmed that PPSC would be in a high-elastic state of ambient temperature and human body temperature. PPSC was a elastomer with moderate crosslinkage, low module and high elongation, and had rapid degradation ratio (degradation degree more than 50%) in phosphate (pH value 7.4) at 37℃.

结果表明，以对甲苯磺酸为催化剂、苯为带水剂，在酸醇比为1，4的条件下可合成较低相对分子质量的中间体癸二酸聚酯二元醇；PPSC弹性体的玻璃化转变温度在0℃以下，于室温及人体温度下处于高弹态；PPSC为适度交联的、低模量高伸长的弹性体，其在37℃、pH值为7.4的磷酸盆缓冲溶液中具有较快的降解性（降解度超过50%）。

The identification of protein were performed by searching the mass spectrometry data from the NCBInr database using the software of Sequest Bioworks3. 2. The results indicated that over 25 protein components including acid and basis phospholipase A2, nerve growth factor, presynaptic neurotoxin, hemorrhagic factor, thrombin-like enzyme, serine protease, glycogen synthase, metalloproteinase, maturase, L-amino acid oxidase, plasminogen activator, adhesion, cysteine-rich secretory protein, disintegrin, fibronectin-binding protein, fibrinogen clotting inhibitor A chain, vascular apoptosis-inducing protein 1, pyranose 2-oxidase, carbamoyl-phosphate synthase, as well as the homology proteins of snake venom ablomin, ablomin, catrin, mucrofirase, pallabin, salmosin and triflin homologues were identified from the GSSV.

从GSSV中鉴定出超过25种蛋白组分，主要包括：酸性磷脂酶A1、碱性磷脂酶A2、神经生长因子、突触前神经毒素、出血因子、类凝血酶、丝氨酸蛋白酶、糖原合酶、金属蛋白酶、成熟酶、L-氨基酸氧化酶、纤溶酶源激活物、外源凝集素、富含半胱氨酸分泌酶、去整合素、纤连蛋白结合蛋白、纤维蛋白原凝固抑制因子A、血管凋亡诱导蛋白1、氨甲酰基磷酸合成酶、吡喃糖－2-氧化酶以及ablomin， catrin， mucrofirase， pallabin， salmosin和triflin的同源蛋白。

In a definite vacuum, the phosphate acid temperature was determined by phosphoric acid concentration.

通过对真空降膜浓缩磷酸脱氟实验表明，操作温度对磷酸的浓缩和深度脱氟效果有显著影响。

The proteins in milk and dairy products were mostly eliminated by the precipitators. Three aseptics and two sweeteners were separated on a C18 column with the mobile phase of methanol -0.05mol/L potassium dihydrogen phosphate under gradient elution. With a diode array detector, acesulfame, benzoic acid, and sorbic acid were detected at 230 nm and sodium saccharin and aspartame were detected at 210nm.

通过加入适量沉淀剂除去样品中绝大部分蛋白质后，采用C18色谱柱分离，以甲醇－0.05mol/L磷酸二氢钾溶液为流动相梯度洗脱，用二极管阵列检测器于230nm波长处检测安赛蜜、苯甲酸和山梨酸，于210nm波长处检测糖精钠和阿斯巴甜。

With regard to the common type in, you typically add phosphoric acid, ammonium nitrate and ammonium dihydrogen phosphate, ammonium dichromate, citric acid and gum Arabic and other chemical components; alcohol fountain solution also includes ethanol or isopropanol.

差于普通型的润版液，凡是补充磷酸、硝酸铵、磷酸二氢铵、轻铬酸铵、柠檬酸和阿拉伯胶等化学组不合；酒精润版液还参加乙醇或异丙醇。

Peptide nucleic acid is a kind of new nucleic acid mimic invented in the early 1990s', in which the deoxyribose phosphate backbone has been replaced by a pseudo-peptide polymer to which the nucleobases are linked. PNA is uncharged, highly stable in chemical and biological environments, and binds complementary DNA and RNA targets with remarkably high affirnity and specificity.

肽核酸是二十世纪九十年代初合成的一种全新的核酸类似物，它以多肽骨架完全替代DNA中的脱氧核糖磷酸二酯键的骨架，呈电中性，具有极高的生物和化学稳定性、极强的核酸结合能力和特异性，在分子生物学的许多方面得到广泛应用。

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