但有些其他的疾病需要与骨转移相鉴别，例如骨折和退行性变，因为这两种病变也可以造成放射性物质的过多吸收造成假阳性。
It is important to rule out fractures and degenerative diseases in any patient as they may cause false positive interpretations.
对相转移催化合成2-戊叉环戊酮及其异构化的条件进行了研究。
The synthetic conditions of 2-pentylidene cyclopentenone using PTC were stud-ied, and the conditions of isomerization were also studied.
MDP与通用的可伸缩性和可用性机制(集群、负载平衡、故障转移、缓存等)相兼容。
MDP is compatible with common scalability and availability mechanisms (clustering, load balancing, failover, caching, etc).
结果表明，升高反应温度、以丙酮为共溶剂或以十二烷基硫酸钠作相转移剂均可使反应速度加快。
The results show that increasing reaction temperature, using acetone as cosolvent or sodium dodecyl sulfate as phase-transfer reagent can accelerate the reaction.
目的：阐明难以与蝴蝶椎相鉴别的病理情况如骨折，感染，转移瘤等的鉴别诊断意义。
Objective. To illustrate the significance of identifying butterfly vertebra that may be confused with other pathologic conditions like fractures, infections, and metastases.
胆管癌不产生胆汁，但这些细胞生成粘蛋白，并很难与活检或针吸标本的转移性腺癌相区分。
Cholangiocarcinomas do not make bile, but the cells do make mucin, and they can be almost impossible to distinguish from metastatic adenocarcinoma on biopsy or fine needle aspirate.
结果表明，这类聚合物冠醚对钠、钾离子有很强的络合能力，并有良好的相转移催化活性。
It is shown that these polymers have very high complexing capacities with potassium and sodium ions and have good phase transfer catalysis activity.
方法以苯甲醛衍生物和苯乙酮为原料，弱碱碳酸钾为催化剂，水为溶剂，用相转移催化法合成查耳酮衍生物。
Methods Chalcone derivatives were synthesized from benzaldehyde derivatives and acetophenone by using weak alkali potassium carbonate as based catalyst in water via phase - transfer catalysis.
表面活性剂催化化学反应过程的机理有胶束催化和相转移催化。
These catalytic mechanisms of interfacial agent in some chemical reactions are micelle catalysis and phase transfer catalysis.
在此新反应体系中，催化剂呈现反应过程相转移催化特性，产物易分离，催化剂可回收循环利用。
In the new reaction system, product can easily isolate and catalyst can be recycled owing to the phase transfer catalysis character of catalyst in reaction process.
本文导出了多径反馈型六阶有源带通滤波器电压转移函数，计算出了该滤波器幅频、相频理论特性曲线。
In this paper we develop the voltage transfer function of the six order active passband filter with multiple path feedback and calculate the theoretical values for A-F and P-F response.
聚乙二醇600的相转移催化作用明显，精制后产品收率在89%以上。
Polyethylene glycol 600 showed good phase transfer catalytic effect; the yield after purification was above 89%.
通过沉淀法和相转移法的结合制备纳米催化剂。
Nanocatalysts were prepared by combining the method of precipitation with that of phase transfer.
对反应合成、相转移催化机理和合成工艺进行了研究和实验探索，经条件优化实验确定了较佳的合成工艺参数。
The mechanism of the reaction and that of phase transfer catalysis were studied. The process parameters were selected by optimum experiment.
方法用高效液相色谱(hplc)法考察疏肝理脾片主要指标成分芍药苷在原生产各环节中(水提液、精制液、干燥品等样品)的提取率、损失率、转移率。
Methods To explore the influences of each links of productive process on the rate of extraction, percentage loss and the transferring rate of paeoniflorin by HPLC.
采用超声波相转移催化技术合成了扁桃酸。
Mandelic acid was synthesized by means of ultrasonic phase transfer catalysis(PTC) method.
蛋白质印迹法：蛋白质分子从电泳凝胶转移到固相介质，然后用抗体进行免疫检测的技术。
Western blotting --- A technique analogous to Southern blotting, used for detection of proteins, usually by immunological methods.
测定了其对氧烷基化反应、氮烷基化反应的相转移催化作用。
Their phase transfer catalytic ability for the reaction of N-alkylation, O-alkylation and oxidation were also determined.
用相转移催化合成了柠檬醛二乙缩醛，提高了产率。
Phase transfer catalyst was used for synthesis of citral diethyl acetal, the yield has increased.
相转移法合成萘丁美酮具有所用试剂易得，操作方法简便，反应条件温和，成本较低等优点。
CONCLUSION The phase transfer catalyst has advantages of simple starting material, convenient operations and mild reaction conditions.
采用CAN作氧化剂，在相转移催化条件下高产率地合成了具有重要价值的有机合成中间体苯苄亚硒砜和苄基亚硒砜。
Two kinds of useful selenoxide reagents are synthesized via the oxidation of selenides by CAN under the condition of phase transfer catalysis.
研究了应用相转移催化等技术合成DL -苯丙氨酸的工艺条件。
The technological conditions of the synthesis of DL-phenylalanine by using phase - transfer catalyst technology and others are discussed.
本文报道了一种丙酸苏合香酯的合成新工艺，研究了以苯乙烯及丙酸钠为原料，相转移催化合成了丙酸苏合香酯。
In this process, styrene arid sodium propionate is used as raw metalsm, styralyl propionate is synthesized by phase transfer catalysis reaction.
本文报道了相转移催化条件下异成烯基苯甲酸酯的合成。
Synthesis of prenyl benzoate under phase transfer catalysis was reported.
采用相转移催化法以四丁基氯化铵为催化剂合成了端基含磺胺嘧啶的聚乳酸，将肿瘤导向基团引入了可生物降解药物载体。
Sulfadiazine-polylactide, a tumor targeting drug carrier, was successfully synthesized by the phase transfer catalysis(PTC)with tetrabutyl ammonium chloride hydroxide as catalyst.
着重记述了近年来相转移催化技术在医药工业中的应用进展。
Some application advances of phase transfer catalytic technology in pharmaceutical industry are described in details.
以工业品的含水醋酸钠和氯化苄为原料，相转移催化法制备醋酸苄酯香料。
Benzyl acetate is synthesized by means of phase transfer catalysis with aqueous sodium acetate and benzyl chloride as raw materials.
首先，以壳聚糖粉末为原料，采用相转移法制备出珠状壳聚糖凝胶树脂；
Firstly, the chitosan powder was physical modified to form chitosan gel beads through phase change.
由于相转移催化具有反应条件温和、反应速度快、反应收率高等优点，使其成为研究的热点。
Phase transfer catalysis is hot point now because of its merit of temperate react condition, quick react rate and high production yield.
在相转移催化反应体系中，超声能够取代相转移催化剂，使反应顺利进行。
Ultrasound may replace phase transfer catalysts in phase transfer catalysis reactions and facilitate the reaction.
应用推荐