- 更多网络例句与色谱相关的网络例句 [注:此内容来源于网络,仅供参考]
-
A new method using gel permeation chromatographic cleanup followed by high performance liquid chromatography-tandem mass spectrometry has been established for quantitative determination of Maleic hydrazide,Prowl and butralin residues in tobacco.
建立了用凝胶渗透色谱净化-液相色谱-串联质谱分析烟草中3种抑芽剂残留的方法。卷烟中的待测抑芽剂组分用V∶V=1∶1超声提取后通过凝胶渗透色谱净化;凝胶色谱柱为Biobeads S-X3玻璃柱(50 g,400 mm×25 mm),流动相为V∶V=1∶1溶液,流速5 mL/min;收集第10~25 min流出的液体用液相色谱色谱-三重四极杆串联质谱仪测定。
-
The preliminary chromatogram data were resolved with Mallat algorithm of wavelet analysis theory. This method that resetting the high frequency signals, reconstructing low frequency and then correcting the background signals in the original signal was to avoid the data skewness with negative digital points after background correction and achieve the baseline correction; according to the study and analysis of simulated data including curve background and real data of the needle-plate and free metal partials insulation defects, the method is effective; the best wavelet function of the background correction is Db5 and the best resolution times of the background correction is 8 for chromatogram data of SF_6 decomposition products, based on the calculation with different wavelet functions and resolution times.
在初步获取的气相色谱数据基础上,运用小波分析技术中的Mallat算法对色谱数据进行小波分解,采取将高频信号置零,重构低频背景信号,再用原始信号扣除背景信号的方法,并对背景信号进行纵向平移以避免扣除后出现负数据点造成色谱峰失真的题目及达到色谱图基线校正的目的;通过对含曲线背景信号的模拟色谱数据和针-板、自由金属微粒缺陷下的真实数据的计算研究表明,该方法的应用是有效的;并通过对不用小波函数和不同分解次数的背景扣除计算,确定了SF_6气体放电分解组分色谱背景扣除所选用的最佳小波函数为Db5小波和最佳分解次数为8次。
-
The chromatographic method usually used are:paper chromatography,thin layer chromatography,liquid chromatography,gas chromatography.
常用的色谱方法有:纸色谱、薄层色谱、液相色谱、气相色谱。
-
BAW is used to on-line monitor the effluent from IC column.
在实际中,以SPQC-BAW技术对离子色谱流出物进行在线监测,可得到响应信号为频率的色谱图,具有很高的灵敏度;利用本室设计的频率/电压转换电路可将频率数字信号转化为模拟电压信号,从而为常用的色谱工作站或色谱数据处理设备接收、利用和处理,实现IC-BAW自动化分析。
-
ABSTRACT The ionic strength of mobile phase can significantly affect the peak shape of ionogenic compounds such as antibiotics in reversedphase high performance liquid chromatography. The influence may be attributed to overloading of ionogenic analytes in lower ionic strength mobile phase.
在反相高效液相色谱过程中,流动相的离子强度可显著影响可解离的化合物如抗生素的色谱峰形,原因在于流动相的离子强度较低时,色谱填料的固定相易于过载,使离子化的化合物的色谱峰形呈典型的过载特征――峰形接近直角三角形。
-
ABSTRACT The ionic strength of mobile phase can significantly affect the peak shape of ionogenic compounds such as antibiotics in reversedphase high performance liquid chromatography. The influence may be attributed to overloading of ionogenic analytes in lower ionic strength mobile phase. In such phase, peak becomes increasingly rightangled triangle in shape with increasing sample load together with increasing peak width and tailing.
在反相高效液相色谱过程中,流动相的离子强度可显著影响可解离的化合物如抗生素的色谱峰形,原因在于流动相的离子强度较低时,色谱填料的固定相易于过载,使离子化的化合物的色谱峰形呈典型的过载特征――峰形接近直角三角形。
-
ABSTRACT ionic strength of mobile phase can significantly affect the peak shape of ionogenic compounds such as antibiotics in reversedphase high performance liquid chromatography. The influence may be attributed to overloading of ionogenic analytes in lower ionic strength mobile phase. In such phase, peak becomes increasingly rightangled triangle in shape with increasing sample load together with increasing peak width and tailing.
在反相高效液相色谱过程中,流动相的离子强度可显著可解离的化合物如抗生素的色谱峰形,原因在于流动相的离子强度较低时,色谱填料的固定相易于过载,使离子化的化合物的色谱峰形呈典型的过载特征――峰形接近直角三角形。
-
Compounds were identified by means of physic-chemical property and spectral data including three new compounds: platyphyllin A (1), neochlorgeniclatone (2),(2E,6Z)-2,6-dimethyl-8-O-β-D-glucosyl-2,6-octadienoic acid (3). The known compounds included cyclic diarylheptanoids, phenylic acid, ect.
从白桦叶的水提取物中,利用各种色谱分离手段(硅胶柱色谱、聚酰胺柱色谱、凝胶柱色谱及制备薄层色谱等),分离得到28个化合物,通过理化性质及各种波谱数据(NMR,MS,IR,etc)鉴定了23个化合物的结构,其中新化合物三个:platyphyllin A(1),新绿原酸内酯(neochlorgeniclatone,2),(2E,6Z)-2,6-二甲基-8-O--2,6-辛二烯酸(2E,6Z-2,6-dimethyl-8-O-β-D-glucosyl-2,6-octadienoic acid,3。
-
A relational expression between column plate number and peak plate number was deduced.
在计算色谱柱塔板数时,应区分色谱柱塔板数和色谱峰塔板数(是由实际色谱峰形得到的,在色谱过程中实际发生的),因色谱柱塔板数与色谱峰塔板数是不同的概念。
-
The applications of chromatographic techniques in the fingerprint study of Chinese traditional medicine, such as gas chromatography, high performance liquid chromatography, supercritical fluid chromatography and high speed counter current chromatography are reviewed.
介绍了气相色谱、高效液相色谱、超临界流体色谱和高速逆流色谱等几种色谱技术在中药指纹图谱研究中的应用现状,以及使用模糊聚类分析和人工神经网络分析指纹图谱对中药进行模式识别和质量鉴定的方法。
- 更多网络解释与色谱相关的网络解释 [注:此内容来源于网络,仅供参考]
-
adsorption chromatography:吸附色谱法
按色谱法拆散所根据的物理或物理化教性量的不异,又否将其分替: .吸附色谱法( adsorption chromatography ) 应用吸附剂名吸附色谱 吸附色谱害用固定相吸附西口对物资分子吸附才能的差别真隐错混折物的分别,
-
paper chromatography:纸色谱法
在固定相构成的平面状层内进行色谱过程的方法称为平板色谱法,又可分为纸色谱法(paper chromatography)、薄层色谱法(thin layer chromatography,TLC)和薄膜色谱法(thin film chromatography)等.
-
gas chromatography:气相色谱
高效液相色谱具有高灵敏度,高选择性,高效能,高速度以及应用广泛的特点.气-固色谱法中以表面积大 气相色谱(Gas Chromatography) 的流动向为惰性气体, 且具有一定活性的吸附剂作为固定相.当多组分的混合样品进入色谱柱后,
-
GC:气相色谱法
方法: 根据文献分类综述,内容包括样品处理和分析方法如高效液相色谱法(HPLC)、气 相色谱法(GC)、气相色谱-质谱联用法(GC-MS)、放射免疫分析法(RIA)等,并对微 量透析法被引入经皮给药动力给药系统研究的体内分析方法进行综述.
-
lc:液相色谱
在色谱法中,将填入玻璃管或不锈钢管内静止不动的一相(固体或液体)称为固定相 ;自上而下运动的一相(一般是气体或液体)称为流动相; 按流动相分 气相色谱(GC) 液相色谱(LC) 超临界流体色谱(SFC)
-
LLC:液-液色谱法
液相色谱又可分为液-固色谱法(LSC)和液-液色谱法(LLC)等. (五)灵敏度高 如气相色谱可以分析几纳克的样品,火焰离子化检测器(FID)可达10-12g/s,电子捕获检测器(ECD)达10-13g/s,检测限为10-9g/L和10-12g/L.
-
LLC:液-液色谱
液相色谱仪根据固定相是液体或是固体,又分为液-液色谱(LLC)及液-固色谱(LSC). 现代液相色谱仪由高压泵、色谱柱、检测器、温度控制系统、进样系统、信号记录系统和馏分收集器等部分组成. 液相色谱法的工作原理是储液器中的流动相被高压泵打入系统,
-
chromatographic:色谱的
色谱学 chromatographia | 色谱的 chromatographic | 色谱吸附;色层吸附 chromatographic adsorption
-
Chromatographic analysis:色谱分析
色谱吸附;色层吸附 chromatographic adsorption | 色谱分析 chromatographic analysis | 色谱带 chromatographic band
-
Chromatographic analysis:色谱分析,色层分析
chromato gram 色谱 | chromatographic analysis 色谱分析,色层分析 | chromatographic technique 色层分析,色谱分析