查询词典 tartaric acid

Silicon in fuel oil reacts with aminosulfonic acid and form a violet component in the medium of tartaric acid and sulfuric acid.

以氨基磺酸为显色剂，用分光光度法测定燃料油中硅含量。

Silicon in fuel oil reacts with aminosulfonic acid and form a violet component in the medium of tartaric acid and sulfuric acid. The component exhibits maximum absorption at 815nm. Beer's law is obeyed in the range of 0~250μg for silicon dioxide and linear correlation is better.

考察了测定条件：在酒石酸及硫酸介质中，最大波长位于815nm，二氧化硅浓度在0~250μg范围内符合比尔定律，线性关系较好。

Experiments show that DTPA, tartaric acid, citric acid, and glycollic acid are possible for stripping Pu〓 from the organic phase containing high concentration UO〓.

结果表明中试厂PUREX流程和TRPO流程的直接衔接是最为成熟和可行的一体化流程，其难点在于锆的处理。

In order to research the relations of carbon sources to structure of PHAs, six kinds of PHAs sample were synthesized by activated sludge with six different carbon sources respectively in the aerobic-anaerobic-anoxic process. Their structures were determined by 〓HNMR、〓CNMR and GC-MS. When the carbon source was acetate, the unit composition of PHAs was 93. 91mol％ 3-hydroxybutanoic acid and 6. 09mol％ 3-hydroxypentanoic acid ; When the carbon source was propionate, the unit composition of PHAs was 28. 66mol％ HB, 63. 13mol％HV, 2. 55mol％ 2-methy-3-hydroxy-butanoic acid (2MHB) and 5. 66mol％ 2-methyl-3-hydroxypentanoic acid (2MHV); When the carbon source was 80％ butyrate and 20％ 1, 4-butanediol, the unit composition of PHAs was 65. 03mol％ HB, 28. 06mol％HV, 1. 91mol％2MHB, 2. 69mol％ 2MHV, 0.73mol％ 4-hydroxy butanoic acid (4HB), 0.78mol％ 4-methyl-3-hydroxy-pentanoic acid (4MHV), 0.80mol％ 3-hydroxyhexanoic acid ; When the carbon source was 20％ butyrate and 80％ 1, 4-butanediol, the unit composition of PHAs was 61. 39mol％ HB, 23. 01mol％HV, 4. 58mol％2MHB, 5. 97mol％ 2MHV, 0.91mol％ 4HB, 2. 37mol％ 4MHV, 1. 77mol％ HHx; When the carbon source was 60％ pentanoate and 40％glucose, the unit composition of PHAs was 41. 24mol％ HB, 58. 76mol％HV; When the carbon source was 60％ benzoate and 40％ glucose, the unit composition of PHAs was 65. 48mol％ HB and 34. 52mol％ HV.

为了研究不同碳源与产物PHAs结构的关系，采用好氧-厌氧-缺氧模式利用6种不同碳源培养活性污泥得到6种不同的PHAs样品，通过〓HNMR、〓CNMR和GC-MS谱图确定了这6种PHAs的单体成分和比例：以乙酸钠培养活性污泥得到的PHAs的单体组成是93.91mol％3-羟基丁酸和6.09mol％3-羟基戊酸；以丙酸钠培养活性污泥得到的PHAs的单体组成除28.66mol％HB、63.13mol％HV外，另外还有2.55mol％3-羟基2-甲基丁酸（2MHB）和5.66mol％3-羟基2-甲基戊酸（2MHV）；以80％丁酸钠和20％1，4-丁二醇混合溶液培养活性污泥得到的PHAs含有七种单体组成：65.03mol％HB，28.06mol％HV，1.91mol％2MHB，2.69mol％2MHV，0.73mol％4-HB（4-羟基丁酸），0.78mol％4MHV（3-羟基-4-甲基戊酸），0.80％HHx（3-羟基己酸）；以20％丁酸钠和80％1，4-丁二醇培养活性污泥所得到的PHAs含有与3#样品相同的七种单体，只是比例不同，分别是61.39mol％，23.01mol％，4.58mol％，5.97mol％，0.91mol％，2.37mol％，1.77mol％；以60％戊酸钠和40％葡萄糖培养活性污泥所得到的PHAs由HB和HV组成，比例是41.24 mol％∶58.76 mol％；以60％苯甲酸钠和40％葡萄糖培养活性污泥所得到的PHAs也由HB和HV组成，比例是65.48 mol％∶34.52 mol％。

Coconut oil is an excellent emollient, being a rich source of saturated fatty acids like oleic acid, linoleic acid, lauric acid, capric acid, caprylic acid, myristic acid and palmitic acid.

椰子油是一个很好的润肤，身为如油酸饱和脂肪酸的丰富来源，亚油酸，月桂酸，癸酸，辛酸，肉豆蔻酸，棕榈酸。

First, a lot of experiments about changing character on CaCO3 surface has been rearsched,example,fatty acid,pentaerythritol,rosin ester,cocoanut oil,rosin, pentaerythritol + rosin ester,glycerine + rosin ester ,cocoanut oil + oleic acid,titanate + fatty acid,cocoanut oil + fatty acid, and so on surface active agents. Among these surface active agents, cocoanut oil + oleic acid,and titanate+ fatty acid,and cocoanut oil + fatty acid are the best.

本文首先对纳米碳酸钙的活化改性进行了实验研究，在硬脂酸钠、季戊四醇、松香酯、椰子油、松香、季戊四醇+松香酯、甘油+松香酯、椰子油+油酸、钛酸酯+硬脂酸钠、椰子油+硬脂酸钠等表面改性剂中，以硬脂酸钠、椰子油、油酸+椰子油、椰子油+硬脂酸钠等活化剂的活化效果较为理想。

Using peptide hydrolysis combined with amino acid analysis, sugar alcohol acetylation combining with GC/MS, fattic acid methyl esterization combining with GC/MS and other technical means it was identify carbohydrate in the bioemulsifier mainly was D-mannose, and main amino acids were glutamic acid, aspartic acid, alanine, and main fattic acids that composed lipid was hexadecanoic acid, octadecenoic acid, and octadecanoic acid.

利用肽水解结合氨基酸分析、糖醇乙酰化结合GC-MS、脂肪酸甲脂化结合GC-MS等技术手段鉴定乳化剂中糖主要为D-甘露糖；主要氨基酸为谷氨酸、天冬氨酸、丙氨酸；构成脂的主要脂肪酸为十六烷酸、十八烯酸和十八烷酸。

The differences of providing amino acid to kernel of different winter wheatculfivars.93-52 with high protein content in kernel had highest content of amino acid innutrition organs,indicated 93-52 can provide abundance material for protein synthesis ofkernel,namely the source in full,so the content of amino acid in kernel was highest;Compared Lumai21 with Jinanl7,the amino acid content in leaf of Lumai21 was a littlehigher than Jinan17,but the amino acid content in stem、sheath and spike was obviouslylower than Jinan17,also the amount of amino acid restored in nutrition organs was large,the translocation degree was low to kernel,namely the flow was not fluency,which wasthe main reason of low content of amino acid in kernel.

小麦不同品种向籽粒供应氨基酸水平的差异。籽粒蛋白质含量高的93-52各营养器官中的游离氨基酸含量均最高，说明93-52籽粒蛋白质合成所需底物供应充足，即源足，因而其籽粒游离氨基酸含量最高。鲁麦21和济南17相比，鲁麦21叶片中的游离氨基酸含量虽略高于济南17，但茎鞘和穗中的游离氨基酸含量却明显比济南17低，并且在后期鲁麦21营养器官中游离氨基酸滞留的多，向籽粒中的转移程度低，即流不畅，是造成鲁麦21籽粒游离氨基酸含量低的主要原因之一。

Odoquinazolin-4(3H)-one,7-methyl-4(3H)-quinazolinone,7-bromoquinazolin-4(3H)-one were synthesized by using anthranilic acid、2-amino-5-nitrobenzoic acid、2-amino-4-nitrobenzoic acid,6-nitro--4(3H)-quinazoline-one、o-amino-terephthalic acid, 2-amino-4-hydroxy benzoic acid、2-amino-5-bromo-benzoic acid、2-amino-5-iodine acid,1、4-butynediol、L-glutamine、isatin anhydride、formamide as starting materials and utilizing microwave-assisted synthetic approach.

本文利用微波辅助合成的方法，以邻氨基苯甲酸、2-氨基-5-硝基苯甲酸、2-氨基-4-硝基苯甲酸、邻氨基对苯二甲酸、2-氨基-4-羟基苯甲酸、2-氨基-5-溴苯甲酸、2-氨基-5-碘苯甲酸、5-甲基-2-氨基苯甲酸等为原料与甲酰胺反应，以及以1，4-丁炔二醇、L-谷氨酰胺与靛红酸酐反应，共合成了13个喹唑啉酮衍生。。。

The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.

本发明通过采用硅铝比SiO2/Al2O3为20～1000重量百分比计20～100％的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型；再经过0.1～3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1～8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20～90℃下处理1～8小时；然后在温度为400～700℃条件下水蒸汽处理2～15小时；再用0.1～3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20～90℃条件下浸渍2～5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题，可用于甲醇转化制丙烯的工业生产中。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。