查询词典 chromatograph

The company offers good service and special products to customer with powerful advanced technology and abundant experience (such as the multidimensional gaseous phase and liquid phase chromatograph).

本公司以强有力的先进技术和丰富的经验为客户提供优质服务和特殊产品（如多维气相和液相色谱仪）。

During the co-pyrolysis experiment of coal and natural gas on the air pressure fixed bed, gaseous phase chromatograph was used to analyze the gas in the pyrolysis processing and the SEM was used to study the surface micro structure of the coke.

在常压固定床上进行煤与天然气的共热解试验，采用气相色谱仪分析热解过程中的气体，同时利用扫描电镜研究制得煤焦的表面微观结构。

Results show that 4-oxo-β-ionone is the major product with yield of 53.5% under the conditions as follows: reaction temperature 45℃, reaction time 24 h, the molar ratio of n: n(NaClO3): n 20: 100: 3, and pH value of solution in 1-3; on the other hand, 5,6-epoxy-β-ionone is major product with yield of 25.4% when reaction temperature is 40℃, reaction time is 24 h, the molar ratio of n: n(NaClO3): n is 20: 120: 5, and pH values of solution is 3. The excessive β-ionone can be recovered by vacuum distillation for reusing again. 4-oxo-β-ionone and 5,6-epoxy-3-ionone were purified by recrystallization and silica gel column chromatograph respectively with the purity over 98%.

研究结果表明：氯酸钠氧化β-紫罗兰酮的反应主要生成4-氧代－β-紫罗兰酮和5，6-环氧－β-紫罗兰酮，经重结晶和硅胶柱层析分离，纯度高于98%；4-氧代－β-紫罗兰酮的有利合成条件是反应温度为45℃，反应时间为24h，溶液的pH值为1~3，反应物配比n：n(NaClO3)：n为20：100：3，最佳收率为53.5%；5，6-环氧－β-紫罗兰酮有利的合成条件是反应温度为40℃，反应时间为24h，溶液的pH值为3，反应物配比n：n(NaClO3)：n为20：120：5，其收率为25.4%；未反应的β-紫罗兰酮经减压蒸馏回收后可重复使用。

Capillary gas chromatograph in connection with mass spectrograph were used to determine the diethylene glycol content in toothpaste product.

KX-250三牙轮钻头上的牙轮牙爪可选用20CrNiMo钢锻造，但20CrNiMo 牙轮牙爪在锻造过程中产生的缺陷严重影响产品的力学性能。

Composing treatments of source separation household bio-organic waste and straw mixed in 10:1, 16 kinds of PAHs in source separation household bio-organic waste and compost production were determined by gas chromatograph/mass spectrograph according to U.

将源分类家庭生物有机垃圾同秸秆按质量比10：1混合后进行堆肥处理，应用气相色谱-质谱联用仪按照U.S。

Objective: To establish a method for determination of melamine residues in milk by gas chromatograph-mass spectrometry.

目的：建立了一种用于奶粉及鲜奶中三聚氰胺含量的气相色谱－质谱联用检测方法。

Our technological equipment is rich, including global satellite positioning system GPS, geological radar meter (SIR-20, EKKO), seismograph, infrared detector (NEC-TH9100), ultrasonoscope, building structure diagnose apparatus, proton magnetometer, atomic absorption apparatus, ion chromatograph, gas chromatography, niton survey meter, and etc.

中心拥有各类先进的检测和探查仪器，如：GPS卫星定位仪、全站仪、数字水准仪、美国SIR-20地质雷达仪、加拿大EKKO地质雷达仪、地震仪、NEC红外热像仪、超声波检测仪、质子磁力仪等物探测量仪器，以及原子吸收仪、离子色谱仪、气相色谱仪、氡气探测仪等化学、放射性检测仪器。同时，不断加大对科研经费的投入，引进和开发地质雷达探测、瞬态面波探测、高密度电法等物理探测、远红外成像检测、GPS动静态定位技术、水土环境监测、研发高难度废水处理工艺、地质灾害防治措施及科技考古技术等新方法。

Production and sales companies: particle detector strength, freeze-drying machine, snow ice machine, glass reactor, rotary evaporator, electronic balance, ultrasonic cleaning machines, ice making machine, industrial ice-making machine, constant temperature and humidity box, microscope several significant oil bath temperature pot / water bath pot, Ma fluoride furnace, low temperature cooling liquid circulating pump, circulating water-type multi-purpose vacuum pump, mold incubator, biochemical incubator, constant temperature incubator, vacuum oven, blast oven, super - net workbench, biosafety cabinets, magnetic stirrer, centrifuge, ultrasonic cell pulverizer, ultra-pure water machines, autoclaves, laboratory various beaker, Bio-Rad power supply, test-bed, constant temperature circulator, low temperature cycle at high pump, pesticide Tachometer, UV analyzers, liquid machine, PCR device, liquid chromatography, weather chromatograph, total acidity / PH, the spectrophotometer, ultra-low temperature refrigerators, constant-current pumps, rotary vane type vacuum pump, auto parts traps, low-temperature thermostat bath; and other products.

公司生产销售：颗粒强度测定仪，冷冻干燥机，雪花制冰机，玻璃反应釜，旋转蒸发器，电子天平，超声波清洗机，冰块制冰机，工业制冰机，恒温恒湿箱，显微镜，数显恒温油浴锅/水浴锅，马氟炉，低温冷却液循环泵，循环水式多用真空泵，霉菌培养箱，生化培养箱，恒温培养箱，真空干燥箱，鼓风干燥箱，超净工作台，生物安全柜，磁力搅拌器，离心机，超声波细胞粉碎机，超纯水机，高压灭菌器，实验室各种烧杯，电泳仪电源，实验台，恒温循环器，低温循环高空泵，农残速测仪，紫外分析仪，移液枪，PCR仪，液相色谱，气象色谱仪，酸度计/PH计，分光光度计，超低温冰箱，恒流泵，旋片式真空泵，自动部分收集器，低温恒温槽；等系列产品。

Results The corrected radiochemical yield was about 54%, and the chemical and radiochemical purity was above 95% by high-performance liguid chromatograph...

结果放射化学产率约为54％，用TLC法和HPLC法测定化学纯度均大于99％，放化纯度均大于95％，18F－FDG各项质量控制指标符合药典要求。

A liquid chromatograph-mass spectrometric method for the determination of sodium cyclamate in food had been established.

建立了食品中甜蜜素的液相色谱-串联质谱测定方法，研究了不同提取溶剂的影响。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。