查询词典 hydrogen ion

In addition, to further improve the performance and efficiency of the system, an insertable head of the ion source was redesigned and the control system was upgraded considerably, based on collaboration with High Voltage Engineer of Europe.

为进一步优化仪器的测试性能，提高测样效率，西安加速器质谱中心与荷兰高压静电公司合作，对原有离子源部分进行升级改造，并对计算机控制部分做了优化。

Negative ion; underground railway station; passenger flow; inspirable particle concentration; airborne bacterial concentration

负离子；地铁站；人流量；可吸入颗粒物浓度；悬浮菌浓度

The result showed that the reaction mechanism between niobium ion and CS2 is an insertion-elimination mechanism. Intersystem crossing may occur in the reaction Nb+ with CS2 and a minimum energy crossing point has been found.

结果表明Nb+与CS2的反应是插入－消去反应，在反应过程中会发生系间窜越，并且找到了两个势能面的能量最低交叉点。

The features of molecular structure of aromatics, resins and asphaltenes were investigated by ruthenium-ion-catalyzed oxidation, where involatile acid products were methylated with excess diazomethaneether and volatile acids were esterified with phenacyl bromide.

利用钌离子催化氧化方法对大港减压渣油芳香分、胶质和庚烷沥青质进行了选择性降解，通过GC、GC-MS等分析手段对降解反应产物中一元正构脂肪酸、α，ω-二元正构脂肪酸和苯二～六元羧酸的含量和分布分别进行了定量分析。

The results showed polymeric diaryliodonium salts were effective aryl ion transfer reagents. Thirdly, a new type polymer supported hypervalent iodine reagents poly { [4-Hydroxy iodo] styrene} has been developed. It was an effective oxidative reagent, and could be applied to the one pot synthesis of 4-arylthiazoles.

然后，我们以聚苯乙烯羟基对甲苯磺酰氧基碘苯为原料，成功制备了一类新型聚合物高碘试剂—聚苯乙烯负载的炔基碘盐，并研究了其作为炔基转移试剂的有效性：(1)该试剂可对硫、氮、硒等负离子进行亲电炔基化反应，合成炔基亚砜、0，0-二烃基二硫代磷酸炔基酯、1-苯乙炔基苯并噻唑以及炔基硒醚。

Methods: Glass electrode,iodometric method,disodium EDTA titration,silver nitrate titration,fluoride ion selective electrode.

玻璃电极法、碘量法、乙二胺四乙酸二钠滴定法、硝酸银滴定法、氟离子选择电极法等。

Resu1ts:0ur exprimemts manifest NtaC can prominently regu1ate1 ipid metabo1 ism, improve condition of hemorrheo1ogy, maintain homosta-sis of TXfu/6--keto--PGF,. l resist oxidation, lower liver index, reducethickness and stage of atherosclerosis p1aque, and promote remembrancefunct ion.

结果：脑力康胶囊可显著地调节血脂、改善血液流变性、维持TXB2与6－keto－PGF10的平衡、抗氧化、降低主动脉脂质含量、降低肝脏系数、病理学观察可减轻动脉粥样硬化程度、减少斑块厚度，且有促智作用。

The process of the different size of living things irradiated with low energy ion was analysed.

低能离子辐照的作用深度和辐射对象的大小决定了低能离子辐射的作用过程。

The etherification reaction of methanol and isoamylene was investigated in an internal recycle gradientless reaction with an ion exchange resin (NKC-9) as catalyst.

采用国产大孔磺酸树脂(NKC-9)，在无梯度反应器内对异戊烯与甲醇醚化反应进行了研究。

Synthesis of isobornyl methacrylate by using macroporous sulfonic ion exchange resin as catalyst has been realized.

以大孔强酸性高于交换树脂为催化剂合成甲基丙烯酸莰醇酯。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48