氢氧化钾

CH3OH could attack the phosphor atom in 1,3,2-dioxaphopholane of compiound (1) to give O-methyl O-hydroxyethyl-O-phthalimidoethyl thiophosphate in 85% yield; in the presence of potassium hydroxide aryl selenol could attack the carbon atom in 1,3,2-diox-aphopholane of the cyclic phospholipid conjugate of N^1-(2-furanidyl)-N^3--5-fluorouracil to give the corresponding product of ring-opening in high yields.

在室温下，以异丙醇作溶剂，苯硒酚与化合物2不反应。在氢氧化钾存在下，以异丙醇／水作溶剂（体积比20：1，在室温下，硒酚可以有效地进攻中化合物2中1，3，2-二氧磷杂环戊烷中的碳原子生成相应的开环产物。按照这一反应条件，顺利实现了硒酚对N^1-（2-呋喃基）-N^3-羟烷基-5-氟脲嘧啶硫代环甘油磷脂缀合物的亲核开环，生成甘油骨架的端碳原子上带有芳硒基新颖的磷脂核苷缀合物。

The effect of mildewed soybean on soybean meal was studied by evaluation of oil content, crude protein content, protein solubility in KOH solution, urase activity, color and flavor.

结果显示，随着霉变大豆含量的增加，豆粕粗蛋白含量有所升高，豆粕氢氧化钾蛋白质溶解度降低，豆粕尿素酶活性降低，豆粕颜色灰暗无光泽，霉变味加重。

The results indicated that the protein content in the meal increased, solubility of meal in KOH solution, urase activity, color and flavor of meal decreased with mildewed bean content increased.

由此得出，用豆粕蛋白质含量作为评价霉变大豆加工所得豆粕质量的指标足不合适的，而采用豆粕氢氧化钾蛋白质容解度作为评价指标更为合理。

Worker bee larvae and honeybee pupae samples were treated with wet grinding to destroy cells and extract fat. Then the extract was esterificated by using KOH-CH3OH solution and determined by GC.

采用湿法研磨工蜂幼虫和蛹以破坏细胞和提取脂肪，提取液用氢氧化钾－甲醇进行甲脂化反应，上清液用于气相色谱分析。

Chemiluminescent immunoassay is one of the advanced immunoassay ofnon-radioisotopic immunoassay because of its high sensitivity, wide dynamic range,high accuracy, stable labeled protein, full automation and extensive application field.CLIA using acridinium ester derivatives as chemiluminescent label has advantages oflow background, high signal-to-noise ratio, no need of catalyst and simpleluminescence system. Different aspects associating the DMAE·NHS-based CLIA were studied in thisthesis, including synthesis of acridinium ester, chemiluminescentcharacteristics of DMAE·NHS, labelling antibody or streptavidin with DMAE·NHS,two-site sandwich chemiluminescent immunoassay for TSH, two-sitesandwich chemiluminescent immunoassay involved biotin-streptavidinsystem for TSH, and competitive chemiluminescent immunoassay usingbiotin-streptavidin system for TT〓. The desired acridinium ester, DMAE·NHS, was synthesized according to thereference method with some modifications. The products were identified by IR, NMR,MS and elemental analysis. In our method, KOH was used in place of NaOH tosynthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate waspurified on a silica gel column with chloroform/ethylacetate(4:1, v/v) as eluent andfurther purified by triturating with hexane/acetone(2:1, v/v).

DMAE·NHS的合成是本论文的关键和难点，我们对文献方法进行改进：文献方法用氢氧化钠与3，5-二甲基-4-羟基苯甲酸反应制得3，5-二甲基-4-羟基苯甲酸钠，再用3，5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3，5-二甲基-4-羟基苯甲酸苄酯，我们用氢氧化钾代替氢氧化钠，使合成取得成功；在合成2'，6'-二甲基-4'-苯基-吖啶-9-甲酸酯时，文献方法对粗产品进行两次硅胶柱层析纯化，第一次柱层析用氯仿／乙酸乙酯(4∶1，V∶V)作溶剂和淋洗剂，第二次柱层析用己烷／丙酮(2∶1，V∶V)作溶剂和淋洗剂，按照文献方法得到的不是所需要的化合物，我们只进行第一次柱层析纯化，然后用己烷／丙酮(2∶1，V∶V)进行研磨，过滤，洗涤，除去溶于己烷／丙酮(2∶1，V∶V)的部分，得到所需要的产品。

A capillary electrophoresis fingerprints method was established to evaluate the quality of Belamcanda chinensis DC. The background electrolyte was a 80 boric acid containing 15 borate solution (adjusted pH 9.7 with KOH solution).

采用毛细管区带电泳法，以80mmol/L硼酸 15mmol/L硼砂缓冲液(用氢氧化钾溶液调pH9 7)为背景电解质，运行电压12 1kV，检测波长228nm，重力进样10s(高度7cm)，建立了射干药材的毛细管电泳指纹图谱。

Chapter 4: Synthesis of 1,5-diary 1-1,4-pentadien-3-ones from acetone or benzalacetone with aromatic aldehydes results in 86-97% yield with potassium hydroxide as catalyst under ultrasound irradiation in 5-60min.

为合成氰基环己醇找到一条方便高效的合成方法。第四章：研究了超声辐射下，以氢氧化钾为催化剂，芳香醛与丙酮及亚苄基丙酮之间反应合成1，5-双苄基-1，4-戊二烯-3-酮。

Given the current complexity of industrial recovery of 3'-methyl-2'-butenyl 3, 3-dimethyl-pentenoate and the decomposition problems with 2-methyl-1-butene, research was conducted on a process for direct recycling of MBDP involving an ester exchange reaction of MBDP with either methanol, trimethyl orthoacetate, or solutions of methanol and trimethyl orthoacetate.

针对目前工业上回收3，3-二甲基－4-戊烯酸－3'-甲基－2'-丁烯酯工艺复杂、异戊烯大量分解问题，研究了MBDP直接返回循环使用工艺，MBDP与甲醇、原乙酸三甲酯或与甲醇原乙酸三甲酯混合溶液进行酯交换反应的回收新工艺，比较了四异丙基钛酸酯、甲醇钠、氢氧化钾用作酯交换催化剂的效果，筛选出回收MBDP&一锅煮&最佳工艺：按照n：n：n：n＝1.0：9.8：9.2：0.05物质的量比投料，74℃~78℃反应21h，MBDP转化为贲亭酸甲酯和异戊烯醇，单程转化率87.7%，用85%的磷酸中和甲醇钠，蒸出甲醇，直接用于合成贲亭酸甲酯。

Extraction of fish oil is done in the temperature of 65℃,70℃, 75℃,80℃,85℃,90℃and95℃ in turn in the condition of pH8.0,55mins in hydrolyzing,20mins in salting out with 4.5 percent of potassium nitrate and 30mins in centrifugalization with 3000r/min.

在传统淡碱水解工艺的基础上，将氢氧化钾和硝酸钾分别替换原工艺中的氢氧化钠和氯化钠，在pH8.0、水解时间55min、用4.5%的硝酸钾盐析30min、用3000转的离心机离心30min的条件下，分别在65℃、70℃、75℃、80℃、85℃、90℃、95℃时提取粗鱼油。

Based on traditional technology of light alkaline bydrolysis,sodium hydroxide and sodium chloride in original technology will be replaced by potassium hydroxide and potassium nitrate differently.Extraction of fish oil is done in the temperature of 65℃,70℃, 75℃,80℃,85℃,90℃and95℃ in turn in the condition of pH8.0,55mins in hydrolyzing,20mins in salting out with 4.5 percent of potassium nitrate and 30mins in centrifugalization with 3000r/min.

在传统淡碱水解工艺的基础上，将氢氧化钾和硝酸钾分别替换原工艺中的氢氧化钠和氯化钠，在pH8.0、水解时间55min、用4.5%的硝酸钾盐析30min、用3000转的离心机离心30min的条件下，分别在65℃、70℃、75℃、80℃、85℃、90℃、95℃时提取粗鱼油。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。