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METHODS: Galanga Resurrectionlily Rhizome volatile oil was extracted by wet distillation method and determined by GC-MS , and the relative content of different constituents was determined by chromatographic peak area normalization method.

采用水蒸气蒸馏法提取山柰挥发油,用气相色谱-质谱联用技术进行测定,并用色谱峰面积归一法确定各化学成分的相对含量。

Results demonstrated that the molecular connectivity indices and quantum chemical parameters could be used to predict the k'for 18 substituted indoles, and the molecular connectivity indices MCI method was more accurate.

成功地利用色谱保留预测有机污染物的Kow和Sw等环境行为参数,发现甲醇含量为60%时容量因子同化合物Kow相关性最好。

Methods HPLC was applied in this study. Kromasil KR100-5C18 (4.6 mm×250 mm, 5μm) column and DAD detector were used with a mixture of methanol and 0.1% methanoic acid as mobile phase in a gradient mode.

采用高效液相色语法,以DAD为检测器,Kromasil KR100-5C18 (4.6 mm×250 mm, 5μm)为分析用色谱柱,甲醇-0.1%甲酸溶液为流动相进行梯度洗脱,建立了玄参药材的指纹图谱。

Mm, 5 μm and a UV detector. Elution was performed at a flow rate of 1 mL/min, with a gradient of methanol-acetonitrile-water starting at 80∶10∶10, increasing linearly to 86∶10∶4 in 35 min, then returning to the initial conditions in 5 min. Elution of phenacyl esters was monitored by absorbance at 254 nm. Pentadecanoic acid was used to be an internal standard.

分析所用色谱柱为ZORBAXSB C18柱,以十七酸作为内标,甲醇-乙腈-水为流动相,采用梯度洗脱(梯度洗脱程序为甲醇-乙腈-水由80∶10∶10在35 min内线性变化到86∶10∶4,然后在5 min内恢复到起始比例,流动相流速为1 mL/min),通过测定苯乙酰甲酯在254 nm处的吸光度值来测定脂肪酸含量。

Plateless printing: Latent images were formed by computer data, toner developed and then transferred to the substrate to be printed.

无版印刷:由电脑数据造成静电潜影,用色剂显影,然后转印到承印物上的方法。

Methods Compounds were isolated and purified by various column chromatographic techniques and their structures were elucidated on the basis of spectral analysis (IR, ESIMS, 1HNMR, 13CNMR). The inhibitory activity against the proliferation of HL60, REH and Raji cell lines was determined by using MTT assay.

用色谱方法分离栀子中化学成分,用波谱技术(IR,ESIMS,1HNMR,13CNMR)进行结构鉴定,用四唑盐比色法测定化合物对白血病细胞(HL60人早幼粒细胞白血病、REH人急性淋巴细胞白血病、 Raji淋巴瘤)增殖的影响。

Tars from mild gasification of Shenmu coal on fludized bed reactor were analyzed and compared with pyrolysis on FBR.

采用色质联用技术分析了流化床煤温和气化过程产生焦油的组成及其相对含量。

The colors have become "dustier," the contours hazy, and the figures dissolve into each other, becoming almost undifferentiated matter.

他的用色变得&满是灰尘&,作品轮廓不清,人物融在一起,看起来几乎无法分辨。朱兵喜欢用土色,比如黄棕色和红棕色。

Xinjiang Beijiang Red Table Grape Industry Development Company uses chromatograph equipment to distinguish varies of colors of fruits and thermal imagery device to grade fruit during process of packing.

项目简介:该项目主要内容:在北疆红提公司各种植基地建设利用色谱设备分色,利用热成像原理分级的国际标准化包装生产线。

Steranes and terpanes exist in saturated hydrocarbon component of oil and source rock,and they are usually identified by gas chromatogram-mass spectrum .

甾萜类化合物存在于原油和生油岩的饱和烃组分中,通常用色谱-质谱法鉴定。

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