[PDF] Top 20 Performance of charged aerosol detection with hydrophilic interaction chromatography
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Performance of charged aerosol detection with hydrophilic interaction chromatography
... heptafluorbutyric acid (0.345%, v/v) (HFBA) (Table 4). The acid solu- tions were equimolar (26.5 mM). The mean response at 80% ACN concentration did not appear to be greatly affected when chang- ing the pH of the salt ... See full document
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Comparison of the kinetic performance and retentivity of sub 2μm core shell, hybrid and conventional bare silica phases in hydrophilic interaction chromatography
... separation performance and retention properties of four sub-2 m underivatised silica materials were evaluated in the hydrophilic interaction chromatography (HILIC) ... See full document
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A A VALIDATED REVERSE PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY CHARGED AEROSOL DETECTOR TECHNIQUE FOR THE SIMULTANEOUS ESTIMATION OF SITAGLIPTIN AND ERTUGLIFLOZIN IN PURE AND PHARMACEUTICAL DOSAGE FORMS
... 13. Ligor M, Studzińska S, Horna A, Buszewski B. Corona charged aerosol detection: An analytical approach. Crit Rev Anal Chem 2013;43:64-78. 14. Ragham PK, Kothapalli BC. Development and validation ... See full document
5
Study of retention and peak shape in hydrophilic interaction chromatography over a wide pH range
... values for BSA, 2-NSA and p-XSA are relatively modest (-1.5, -0.5, -0.8 respectively). The experiments were repeated using columns from a different manufacturer (Agilent Glycan amide and bare silica columns) in order to ... See full document
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Accurate and efficient amino acid analysis for protein quantification using hydrophilic interaction chromatography coupled tandem mass spectrometry
... high performance liquid chromatography (UHPLC/UPLC or HPLC)-, gas chromatography (GC) or capillary electro- phoresis (CE) prior to detection by absorbance, fluores- cence, or mass spectrometry ... See full document
12
Development of generic methods for the analysis and purification of polar compounds by high performance liquid chromatography
... to charged aerosol ...light-scattering detection (ELSD) (Nogueira et al. 2005), CAD detection limits can be superior to both these detectors (Chapter 4, (Hutchinson et ... See full document
246
Simultaneous untargeted and targeted metabolomics profiling of underivatized primary metabolites in sulfur-deficient barley by ultra-high performance liquid chromatography-quadrupole/time-of-flight mass spectrometry
... and detection with GC–MS and/or LC–MS ...using hydrophilic interaction liquid chromatography (HILIC) [4, 12, 21, ...high performance liquid chro- matography–mass spectrometry (HPLC–MS) ... See full document
17
Development and validation of a novel high performance liquid chromatography coupled with Corona charged aerosol detector method for quantification of glucosamine in dietary supplements
... of hydrophilic nature of chondroitin, MSM and certain water soluble com- ponents (phenolic, carbohydrates and soluble fibre) in ginger [58, 59] would have dissolved in the volume of water used for the extraction ... See full document
20
Practical observations on the performance of bare silica in hydrophilic interaction compared with C18 reversed phase liquid chromatography
... positively charged groups exist on the RP surface that are introduced in the bonding process ...be charged under the HILIC conditions used, as its retention increases with increasing buffer strength ... See full document
9
Investigation of the analytical performance of aerosol based detectors in liquid chromatography
... the detection sensitivity to some extent [21, 24, ...optimal detection sensitivity using ELSD and ...C-CAD detection of volatile organic ...C-CAD detection of volatile organic bases can be ... See full document
147
OVERVIEW OF MELANIN PIGMENTS AND THEIR ANALYTICAL DETECTION: A REVIEW
... regulated by the melanocortin 1 receptor (MC1R) that its gene is susceptible to skin melanoma. [44] As we knew, skin pigmentation was based on the amounts of melanin, which is distributed in keratinocytes. The response ... See full document
8
Quantitative structure retention relationships for rapid method development in hydrophilic interaction liquid chromatography of pharmaceutical compounds
... are hydrophilic phases with silanol groups and siloxane bridges, which can display hydrogen donor and acceptor ...less hydrophilic silica phases, consisting of a hydrosilation silica surface populated ... See full document
238
ULTRA PERFORMANCE LIQUID CHROMATOGRAPHY: A CHROMATOGRAPHY TECHNIQUE
... UPLC refers to Ultra Performance Liquid Chromatography. It improves in three areas: Chromatographic resolution, speed and sensitivity analysis. It uses fine particles and saves time and reduces solvent ... See full document
10
DNA hydroxymethylation age of human blood determined by capillary hydrophilic-interaction liquid chromatography/mass spectrometry
... 5-hmC content has been shown to alter in mouse aging brain [27, 28]. Age-associated changes in global DNA hydroxymethylation in human are not yet known. Like 5-mC, change in 5-hmC may occur during aging, potentially ... See full document
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DEPRESSION CONTROL IN BREAST CANCER PATIENTS: A NEW HPLC-UV METHOD FOR THE SIMULTANEOUS DETERMINATION OF THE CO-ADMINISTERED DRUGS, LETROZOLE AND VILAZODONE, IN HUMAN PLASMA
... 13. Moussa BA, El-bagary RI and Osman EEA. Determination of Letrozole in Pharmaceutical Preparation and Human Plasma Based on Fluorometric Detection. Anal Chem Lett. 2013;3(2):139 –46. 14. Mondal N, Pal TK and ... See full document
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Detection Aristolochic Acids 1 and 2 in Costustoot via Electrochemical Method and Liquid Chromatography
... The performance of the HPLC-ECD system for separating AA-1 and AA-2 also remained stable for 3 months with the same ...the detection limit by the present HPLC-ECD method, our method makes it possible to be ... See full document
8
Employment of Electrochemical Methods for Assessment of the Maize (Zea mays L.) and Pea (Pisum sativum L.) Response to Treatment with Platinum(IV)
... high performance liquid chromatography with electrochemical detection for determination of Pt(IV) content, amino acids, reduced (GSH) and oxidized (GSSG) glutathione levels, and phytochelatin ... See full document
15
Separation and identification of phenolic acid and flavonoids from Nerium indicum flowers
... The flowers of Nerium indicum (50 g) were extracted 3 times with MeOH under reflux for 3 h. Evaporation of the solvent under reduced pressure provided the MeOH extract (5.1 g). To separate the compound, preparative ... See full document
5
Chemometric assisted RP-HPLC quantitative estimation and validation of hydrochlorothiazide and triamterene in tablet dosage form
... liquid chromatography (HPLC) with photodiode array (PDA) detection was implemented for the simultaneous determination of Hydrochlorothiazide and Triamterene in tablet dosage ...The detection was ... See full document
7
Improved methodology for assaying brassinosteroids in plant tissues using magnetic hydrophilic material for both extraction and derivatization
... study. The calibration curves were constructed by plot- ting the analyte/IS peak area ratio versus the concentra- tions with triplicate measurements from 100 mg rice shoots. MRM chromatograms of the BRs in plant tissue ... See full document
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