查询词典 water column

By this method, the productivity of 3. 18g/l extracellular polysaccharides was obtained. The optimum extraction method was obtained by RSA. It was determined as follows: 91. 4 ℃, 2. 9h, the weight ratio between mycelia and water was 1 to 3. The productivity was 12. 38% of dry mycelia. Set the purifying methods of Grifola frondosa: Precipitated polysaccharides part by 60% ethanol→removed protein by Sevag method→removed coloring matter by H〓O〓→removed salts by dialyse→DEAE-cellulose column chromatogram→ purified polysaccharides groups.

对于胞内多糖的提取，采用湿菌体经捣碎再高压破壁的方式破碎菌体细胞，采用响应面分析法得出优化后的提取条件为：提取温度91.4℃，提取时间2.9h，料水比1：3，此提取条件下胞内粗多糖的率为干菌体重的12.38％建立了灰树花多糖分离纯化的技术路线 60％乙醇沉淀的粗多糖→Sevag法脱蛋白→H〓O〓脱色→透析脱盐→DEAE-纤维素层析分离→多糖组分。

This paper has studied the application of eluant online generated method, gradient elution and concentrated method to meet the requirement of accurate measurement of super trace chloride and sulfate in water quality of the nuclear power plant, under the condition of using the separate column which has high selection of hydroxide.

研究了在新型离子色谱中采用淋洗液在线发生技术和对OH-选择性高的分离柱的条件下，建立适当的梯度淋洗程序和样品浓缩富集方法，以满足对核电水质中超痕量Cl-和SO2 -4进行准确测定的要求。

This paper has studied the application of eluant online generated method, gradient elution and concentrated method to meet the requirement of accurate measurement of super trace chloride and sulfate in water quality of the nuclear power plant, under the condition of using the separate column which has high selection of hydroxide.

研究了在新型离子色谱中采用淋洗液在线发生技术和对OH-选择性高的分离柱的条件下，建立适当的梯度淋洗。序和样品浓缩富集方法，以满足对核电水质中超痕量Cl-和SO2 -4进行准确测定的要求。

Chromatographic separation on a C18 column was achieved using a binary eluent containing methanol and water with 0.2% formic acid.

本研究特别针对人和动物治疗疾病较为常用的磺胺类抗生素和氯霉素给予关注。

The eluents were water, 10%, 20 %, 30 % and 50 % ethanol respectively and they flowed through the macroporous resin one by one with five times of the column volume. The obtained eluent of 50 % ethanol was evaporated and the content of total flavonoids was 76 % measured by HPLC.

结果 选择AB-8大孔树脂；最佳纯化工艺为上样液总黄酮质量浓度 60 mg·L-1，pH 5.0，温度 25 ℃；最佳洗脱方式是用5倍柱体积的水及体积分数分别为10 %、20 %、30 %的乙醇依次洗脱，弃去洗脱液后再用5倍柱体积的体积分数为50 %的乙醇洗脱；HPLC法测定总黄酮的含量为76 %。

Utilizing the reversed-phase high performance liquid chromatogram to carry out further purification to the deer placenta polypeptide, the best purifying condition of separation is: Chromatogram column Hypersil ODS C18 (4.6*250mm), A liquid 0.1% TFA /ACN, B liquid 0.1% TFA / water, in 30min10% A ～50% A and 90% B ～50% B linear gradient elutes, velocity of flow 1.0mL/min, temperature 30℃, detecting wavelength 214nm.

利用反相液相色谱技术对鹿胎盘多肽进一步纯化，最佳分离纯化条件为：色谱柱 Hypersil ODS C18(4.6×250mm )，流动相 A 液0.1% TFA/乙睛，B 液0.1%TFA/水，30min 内10%A ～50%A ，90%B ～50%B 线性梯度洗脱，流速1.0mL/min ，温度30℃，检测波长214nm 。

Based on the test results, the relation between the flashover voltage of the ice column and the freezing-water conductivity or the air pressure was presented.

根据试验结果，文中给出了冰柱闪络电压与覆冰水电导率和气压的关系。

The column was Diamonsil C18(150 mm×4.6 mm,5 μm),the mobile phase was methanol-water(50∶50),and the evaporative light-scattering detector was used as detector.

色谱条件为Diamonsil C18柱(150 mm×4.6 mm，5 μm)，流动相为甲醇-水(50∶50)，检测器为蒸发光散射检测器。

Mainly thimble, reset rod, Secretary extinguishers (use of international standards such as the Japanese JIS, German DIN); SUJ2 derivative bearing steel columns, Introduction sets (using the Japanese "Fu Aventis" standard); jack mouth S45C high-quality steel products (use of international standards ), SKD11 Chong-pin, SKH51 straight needle, SUJ2 straight needle; there straight guide columns, occasional columns, sets of straight guide, care kits, gate kits rod guide column, bar ring, oblique derivative columns, quenching cylindrical, silver steel bars, flat die springs, black line round springs, high-speed steel Chong-pin, water Tsui, positioning ring, locking independent guide columns, sliding-oriented pieces, rolling-oriented pieces, heating tube , dual electric, high temperature wire, insulation casing, Nagarze wiring accessories such as mold.

主要有顶针、复位杆、司筒（采用国际标准如日本JIS、德国DIN）；SUJ2轴承钢导柱、导套（采用日本&富特巴&标准）；唧觜选用优质S45C钢材，SKD11冲针、SKH51直冲针、SUJ2直冲针；还有直导柱、托柱、直导套、托套、浇口套拉杆导柱、拉杆挡圈、斜导柱、淬火圆柱、银钢枝、模具扁弹簧、黑线圆弹簧、高速钢冲针、水咀、定位圈、锁扣独立导柱、滑动导向件、滚动导向件、加热管、电热偶、高温导线、绝缘套管、接线卡子等模具配件。

Methods HPLC method was used, chromatography condition included the instrument was HP-1100 with a C18 Column and the mobile phase was methyl aldehyde and water（65:35）, at flow rate of 1.0ml/min,peaks were detected at 254nm.

高效液相色谱法。色谱条件：用十八烷基硅烷键合硅胶为填充剂，以甲醇-水（65：35）为流动相。

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。