reversed phase high performance liquid chromatography

... single-step liquidliquid extraction with tert-butyl methyl ether was used for LPZ extraction from plasma samples obtained LPZ was determined by using reversed phase- high performance liquid chromatography ... pharmaco-medicine no2-2018 DETERMINATION OF LANSOPRAZOLE IN DOG PLASMA USING REVERSED PHASE- HIGH PERFORMANCE LIQUID CHROMATOGRAPHY Luong Quang Anh*; Vu Ngoc Thang** Tran Nguyen Ha***; Nguyen Ngoc ... successfully applied to determine LPZ in dog plasma samples * Keywords: Lansoprazole; High performance liquid chromatography; Dog plasma; Validation INTRODUCTION Lansoprazole, a proton pump inhibitor,...

Ngày tải lên: 23/01/2020, 10:46

... khuẩn SPE | Solid phase extractlon Kỹ thuật chiết pha rắn SPME | Solid phase micro extraction Kỹ thuật vi ly trích trên pha rắn GC Gas Chromatography Kỹ thuật sắc ký khí LC Liquid chromatography ... nói trên, kỹ thuật sắc ký lỏng (liquid chromatography, LC) được phất triển, hoàn thiện để có được kỹ thuật sắc ký lỏng hiệu năng cao (hiph performance liquid chromatography, HPLC) Năm 1967, Horvath ... được các chất cần tách và xác định 2 Phương pháp chiết mẫu 2.1 Kỹ thuật chiết lóng — long (Liquid — liquid extration) '”Ẻ! Nguyên tắc cơ bản của quá trình chiết lỏng — lỏng là sự phân bố của...

Ngày tải lên: 09/03/2014, 18:55

... identification method. Instruments and conditions High- performance liquid chromatography- diode array detection (HPLC-DAD) analysis was performed on a liq- uid chromatography system (Agilent 1100 Series, ... ESI-MS: electro- spray mass spectrometry; LC-ESI/MS: liquid chromatogra- phy-electrospray mass spectrometry; HPLC-DAD: high- performance liquid chromatography- diode array detec- tion; MS/MS: tandem ... Quasi-MS n identification of flavanone 7-glycoside isomers in Da Chengqi Tang by high performance liquid chromatography- tandem mass spectrometry Fengguo Xu 1,2 , Ying Liu 3 , Zunjian Zhang*...

Ngày tải lên: 13/08/2014, 15:21

... chromatographic techniques such as thin layer chromatography, gas chromatography, capillary electrophoresis, flow injection analysis, and high performance liquid chromatography (HPLC) Histamine has a ... addition, high levels of histamine in seafood is also a health hazard for consumers.For these reason, the thesis "Studying histamine in seafood products by high performance liquid chromatography" ... THESIS THE ADVANCED PROGRAM IN BIOTECHNOLOGY STUDYING HISTAMINE IN SEAFOOD PRODUCTS BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY SIZE 14-15 SUPERVISORS STUDENT Msc DO TAN KHANG LE ANH VU Student code:...

Ngày tải lên: 06/10/2015, 13:05

... Anal 46:295–302 Moncrieff J (1992) Determination of cetirizine in serum using reversedphase high- performance liquid chromatography with ultraviolet spectro‑ photometric detection J Chromatogr B ... of cetirizine, phenyl propanolamine and nimesulide using third derivative spectrophotometry and? ?high performance liquid chromatography in pharmaceutical preparations Fatma Ahmed Aly, Nahed EL‑Enany, Heba Elmansi ... Simultaneous determination of nimesulide and hydroxynimesulide in human plasma and urine by highperformance liquid chromatography J Chromatogr B 425:413–418 17 Castoldi D, Monzani V, Tofanetti O (2003)...

Ngày tải lên: 29/05/2020, 12:33

... plasma by high performance liquid chromatography tandem mass spectrometry Anal Chem 20:6640–6645 27 Shah AS, Rathod SI, Suhagia NB, Pandya SS, Parmar VK (2008) A simple high- performance liquid chromatographic ... occurring triterpenoic acids, called as boswellic acids (BA’s) Results:  A highly reproducible High performance liquid chromatography- ultraviolet diode array detection (HPLCUV-DAD) method was developed ... 10.1186/s13065-016-0194-8 RESEARCH ARTICLE Open Access Simultaneous quantification of triterpenoic acids by? ?high performance liquid chromatography method in the extracts of gum resin of Boswellia serrata obtained by different...

Ngày tải lên: 29/05/2020, 14:25

... with the sample preparation procedure combined with a solid phase extraction (SPE) purification process and a high- performance liquid chromatography (HPLC) with a diodearray detector (DAD) The ... THE DETERMINATION PROCESS OF AMMELIDE (AMD) AND DICYANDIAMIDE (DCD) IN ANIMAL FEED BY HIGH- PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC) WITH A DIODE-ARRAY DETECTOR (DAD) Dang Van Su1*, Phan Thi Thanh ... running mode; Mobile phase A (ammonium acetate 10 mM): 20-60 (low - high) ; Mobile phase B (ACN): 80-40 (low - high) and pH: 6-7 (low - high) ; Based on the research of Srinubabu et al [20], the experimental...

Ngày tải lên: 20/01/2021, 16:38

... THỰC PHẨM TIỂU LUẬN XÁC ĐỊNH POLYPHENOL BẰNG PHƯƠNG PHÁP SẮC KÝ LỎNG CAO ÁP (HLPC - HIGH PERFORMANCE LIQUID CHROMATOGRAPHY) Bộ môn: Phương pháp phân tích Cơng nghệ sinh học Giảng viên hướng dẫn: ... học Các phương pháp tách truyền thống cho polyphenol chiết lỏng-lỏng, sắc ký lớp mỏng(thin layer chromatography – TLC), sắc ký lỏng hiệu cao(HPLC) Giới thiệu chung phương pháp sắc ký TIEU LUAN...

Ngày tải lên: 06/07/2022, 00:19

... Astragali Radix and its products, including spectrophotometry [9], high- performance liquid chromatography [10,11] and LC/MS-MS [12] Reversed- phase HPLC is now commonly used for the separation of complex ... identification of isoflavonoids in Radix Astragali by matrix solid -phase dispersion extraction and high- performance liquid chromatography with photodiode array and mass spectrometric detection ... www.mdpi.com/journal/molecules Article Identification and Determination of Flavonoids in Astragali Radix by High Performance Liquid Chromatography Coupled with DAD and ESI-MS Detection Yan-Wen Lv 1, Wei Hu 1, Yu-Ling...

Ngày tải lên: 02/11/2022, 11:34

... studies using thin layer chromatography [5], high- performance liquid chromatography (HPLC) with a photodiode array detector (PDA) [1, 2, 4, 6], and highperformance liquid chromatography (HPLC) tandem ... luutrang1710@gmail.com Vietnam Journal of Food Control - vol 5, no 4, 2022 634 Development of a high- performance liquid chromatography method for … humid tropical monsoon climate area is considered as a favorable ... Scientific Research Development of a high- performance liquid chromatography method for simultaneously analysis of saponins and flavonoid in materials...

Ngày tải lên: 04/11/2022, 14:51

... Journal of Chromatography A 1685 (2022) 463602 Contents lists available at ScienceDirect Journal of Chromatography A journal homepage: www.elsevier.com/locate/chroma High performance liquid chromatography? ??tandem ... by liquid chromatography/ tandem mass spectrometry, J Chromatogr B 1054 (2017) 36–43 [16] L Whiley, LC Nye, I Grant, N Andreas, KE Chappell, MH Sarafian, et al., Ultrahigh -performance liquid chromatography ... of phase B; then increasing to 20 % of phase B from to 0.1 min; then increasing to 65 % B from 0.1 to min; finally increasing to 95 % of phase B from to 7.5 min, and completed to 2.5 at 95% of phase...

Ngày tải lên: 20/12/2022, 21:39

... focused on the properties and phase equilibria of polymers, colloids, proteins, biological and synthetic membranes, liquid crystals, semiconductors, solid -liquid and liquid- liquid interfaces, nano-materials, ... probability density is higher The sampling frequency distribution should resemble the PDF of the thermodynamic states Monte Carlo simulation starts at a location in the phase space The next position ... and Other Fields of Science 1.2.2 Microstates in phase space The number of possible cases that N particles exist in m distinct microstates in phase space is W= N! N! = m n1 ! n2 ! · · · n i !...

Ngày tải lên: 29/06/2014, 13:20

... cylinders (T=4D) at Re=200 ……………………………………………………163 XII Figure 6.12 Time histories of in -phase and anti -phase lift coefficients for a pair of side-by-side cylinders (T=3D) ………… ………………………………163 ... faster job Another advantage of mesh-free method is ease of construction of high- order schemes The construction of higher-order schemes on unstructured grids by standard schemes has encountered ... al (1996) reported that EFGM is an accurate scheme and can achieve higher rates of volumetric locking, and claimed that the performance of EFGM is only minimally affected by irregular placement...

Ngày tải lên: 16/09/2015, 17:12

... by the nodes to model the problem domain, the FEM has encountered several limitations, including high computational cost in generating meshes, low accuracy in the derivatives of primary field variables, ... stabilize strong form formulations using irregular local nodes; To improve the accuracy, efficiency and performance of strong form methods; To formulate strong form schemes for complex problems of practical ... transfer (Cleary, 1998), and so on Recently, the SPH method has been applied for the simulations of high (or hyper) velocity impact (HVI) problems Libersky and his co-workers have made outstanding...

Ngày tải lên: 30/09/2015, 06:28

... ] × MagH [f ] , and the phases are added: Phase Y[ f ] ' PhaseX [f ] % Phase H[ f ] To understand this, imagine a cosine wave entering a system with some amplitude and phase Likewise, the output ... Y[f ] / X [f ] , divide the magnitudes and subtract the phases, i.e., Mag H[ f ] ' Mag Y[f ] / MagX [f ] , Phase H[ f ] ' PhaseY[f ] & Phase X[ f ] In rectangular form this becomes: Re H [ f ... response with zeros (c), higher resolution can be obtained in the frequency response, (d) Only the magnitude of the frequency response is shown in this example; discussion of the phase is postponed...

Ngày tải lên: 13/09/2012, 09:49

... interference, but efficiency of 70% of the Nyquist rate is achieved High performance over actual long H.F channels was obtained, although at a high implementation cost Although fully transistorized, the ... equalization, the parallel technique was the preferred means of achieving high rates over a dispersive channel, in spite of its high cost and relative bandwidth inefficiency An added benefit of the ... Another wireless application of OFDM is in high speed local area networks (LANs) Although the absolute delay spread in this environment is low, if very high data rates, in the order of many tens...

Ngày tải lên: 02/03/2013, 16:58

... improve Army effectiveness This report will • • • • support the need for ongoing work in these high- risk, high- technology fields that offer such great promise for the country's future security help ... major deterrent to updating and improving performance and functions has been the choice of the "smallest" processor to meet only the initial functional and performance objectives It is at least as ... internally stored computer programs Eliminating people on board the tank could lead to highly improved performance, now limited by human physical endurance and safety The tank would become an...

Ngày tải lên: 13/12/2013, 01:15

... operations, such as additions or divisions) needed for convergence The statistical performance, or accuracy, was measured using a performance index, defined as E1 = m m X(X i=1 XX m m jpij j j j 1) + ( maxpijjp ... larger the value E1 is, the poorer the statistical performance of a separation algorithm In certain experiments, another fairly similarly behaving performance index, E2 , was used It differs slightly ... 14.4.2 Results for simulated data Statistical performance and computational load The basic experiment measures the computational load and statistical performance (accuracy) of the tested algorithms...

Ngày tải lên: 23/12/2013, 07:19

... 28 2.1 Ideal lowpass and highpass lters 34 2.2 Twochannel lter bank 36 2.3 Arbitrary lowpass and highpass lters ... different wavelet lters 134 7.6 Results of the performance evaluation for a 7.7 Results of the performance evaluation for a ẵẳ Mbit/s LAN connection 139 kbit/s ... ắ ắ ẳ ắ ắ ắ ỉắ where ẳ is a constant that often is chosen such that the ratio of the highest and the second highest For this value of ẳ , the maximum of is sufciently large In practice, one often...

Ngày tải lên: 25/12/2013, 05:17

... Figure 2.29, does not hold, however, for very high voltages The insulating material between two insulated terminals will break down at a sufficiently high voltage If the insulator is air, ionized ... linear relationship between voltage and current in electrical conductors does not apply at very high voltages and currents Further, not all electrically conducting materials exhibit linear behavior ... A See Figure 2.16(a) for voltage polarity and current direction B current flows from a point of higher potential to one of lower potential; thus, element A acts as a load Since power must be conserved,...

Ngày tải lên: 19/01/2014, 19:20