碱的

Consequently, the PVA (1799) made by the method of low alkalinity alcoholysis was successful applied to the long-net washer .

通过对低碱醇解法PVA(1799)的粒度的统计分析，并利用实验找出其膨润程度随水温变化的趋势，从而实现了用长网式水洗机成功水洗低碱醇解法生产PVA(1799)。

In this paper, we have studied different types of indicators which can be used in alkalimetry, the results suggested that helianthine-triphenylrosaniline (1:1) mixed indicator can instruct color changes of titration end significantly, the accuracy and reproducible are good.

研究了用于碱量法测定的不同种类指示剂，结果表明：甲基橙－亚甲基蓝(1：1)混合指示剂终点颜色变化明显，准确性和重现性好，可以作为测定壳聚糖不同脱乙酰度的通用指示剂，解决了目前碱量法存在的通用性和毒害问题。

Firstly, 24 chiral Schiff base ligands were prepared and evaluated for theasymmetric HDA reaction between Brassard diene with benzaldehyde. Theresults revealed that the ligand derived from 3,5-di-tert-butylsalicylaldehydewith (1R,2S)-2-amino-1,2-diphenyl-1-ethanol shows an excellent chiralinduction in the reaction.

首先合成了 24 个手性三齿席夫碱配体，并应用于 Brassard 二烯与苯甲醛的不对称 Hetero-Diels-Alder 反应，结果表明，3，5-二叔丁基水杨醛与(1R，2S)-1，2-二苯基-2-氨基-乙醇生成的单席夫碱显示出优秀的手性诱导能力。

Methods: The brucine and strychnine in the micropowder and powder of Semen Strychi were determined by HPLC to calculate the cumulative release at different time.

以马钱子碱和士的宁为指标，用HPLC测定马钱子粉和马钱子微粉在不同时间马钱子碱和士的宁溶出的量，计算累积释放率。

The chromosomal constitution of 200 advanced lines from 1R monosomic addition lines between the wheat cultivar Mianyang11 (MY11) and different rye lines R3, R12, and Baili-rye was studied by the improved C-banding and A-PAGE method. The result showed that 45 lines were identified as 1RS/1BL translocation lines congruously by the two methods. But a line (843-1-1), originated from an 1R addition line of wheat cultivar MY11 and rye line R12, was identified as 1RS/1BL translocation line by C-banding and genomic in situ hybridization,but the secalin block from chromosome arm 1RS of rye was absent in the A-PAGE pattern of its seed proteins.

结果发现，在鉴定的200个株系中，有45个株系经C-带和A-PAGE检测均一致地发现它们含有一对1RS /1BL易位染色体，而一个株系843-1-1，C-带鉴定、原位杂交结果均证明它含有一对1RS/1BL易位染色体，但A-PAGE醇溶蛋白图谱却不具有黑麦1RS染色体臂的黑麦碱特征带，而表达出既不同于黑麦碱又不同于亲本绵阳11的醇溶蛋白带型。

The invention discloses a preparing method of bacillus alcaligenes strain Alcaligenes sp., CCTCC No.M206121 of degraded o-nitrophenol, which comprises the following steps: allocating inorganic salt culture medium with dibasic sodium phosphate, monobasic potassium phosphate, manganese sulfate, copperas, addex-magnesium, calcii chloridum, blue copperas, white copperas and hydrogen dioxide solution; adjusting pH value; sterilizing under high temperature; enriching bacterial; sampling from sludge; allocating suspending liquid with soil sample and inorganic salt; seeding into ortho-nitrophenol fresh organic salt culture medium with finite volume seeding quantity; keeping the temperature; culturing on shaker; getting enriched culture; separating and purifying enriched culture in LB solid culture medium.

本发明公开了一种降解邻硝基酚的产碱杆菌菌株及制备方法，产碱杆菌为Alcaligenes sp。，CCTCC No.M206121。其制备步骤是：首先是配制无机盐培养基，成分为磷酸氢二钠、磷酸二氢钾、硫酸锰、硫酸亚铁、硫酸镁、氯化钙、硫酸铜、硫酸锌和双蒸水，调pH值高压灭菌；其次是菌种的富集，从污泥中取样，将土样与无机盐培养基配制成悬浮液，将悬浮液以一定体积接种量接种到含邻硝基酚的新鲜无机盐培养基中，恒温，摇床培养，获富集培养物；第三是将富集培养物在LB固体培养基中分离和纯化。

This paper aims at the study of the toxic mechanism of gelsemium total alkaloids ,i.e. their impacts on respiration,heart rate and blood pressure by 5 different concentrations(0.5,1.0,2.0,4.0,8.0 mg/kg).

为有效合理地利用钩吻，以家兔作为研究对象，每公斤体重分别静脉注射0.5，1.0，2.0，4.0，8.0mg的钩吻总碱，研究钩吻总碱对家兔的呼吸、心率和血压的影响，综合分析其毒理作用。

The invention discloses a method to analyze fish genetic information with mitochondria DNA D-loop controlling zone, which comprises the following steps:(1) extracting genom DNA and mitochondria DNA of fish;(2) designing simple primer in fish mitochondria DNA D-loop controlling zone; possessing twenty one basic groups CAC CCY TRR CTC CCA AAG CYA in upstream primer MitD1-F; possessing twenty three basic groups GGT GCG GRK ACT TGC ATG TRT AA in downstream primer MitD1-R;(3) proceeding PCR reaction under the function of primer;(4) choosing agarose jel electrophoresis;(5) checking sequence for augment mtDNA D-loop gene fragment.

本发明公开了一种利用线粒体DNA D-loop控制区进行鱼类遗传信息分析的方法。它包括如下步骤：(1)分别提取鱼类基因组DNA和线粒体DNA；(2)在鱼类线粒体DNA D-loop控制区设计简并引物：其上游引物MitD1-F有21个碱基：CAC CCY TRR CTC CCA AAG CYA；下游引物MitD1-R有23个碱基：GGT GCG GRK ACT TGC ATG TRT AA；(3)在引物的作用下进行PCR反应；(4)琼脂糖凝胶电泳；(5)对扩增的mtDNA D-loop基因片断进行测序。

A poisonous white alkaloid ,C21H21NO6,obtained from the root of the goldenseal and formerly used locally to treat inflammation of mucous membranes.

白毛茛碱一种有毒的白色的碱，C21H21NO6，提炼自白毛茛的根，以前在某些地区用于治疗粘膜炎

It is reviewed the applications of Betti base and its derivatives as chiral ligands in asymmetric synthesis, chiral auxiliary synthesis and resolution.

本文综述了近年来Betti碱及其衍生物在不对称合成、手性辅助合成以及拆分中的应用，并对未来Betti碱及其衍生物的应用作了展望。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。