Analytical Chemistry Insights

Buprenorphine and Norbuprenorphine Determination in Mice Plasma and Brain by Gas Chromatography–Mass Spectrometry (694 Views since 10 Mar 2014)

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Synthesis and Characterization of Maillard Reaction Products of Salbutamol and Terbutaline with Lactose and Development and Validation of an LC Method for the Determination of Salbutamol and Terbutaline in the Presence of These Impurities (689 Views since 02 Mar 2014)

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Simultaneous Determination of Amlodipine Besylate and Atorvastatin Calcium in Binary Mixture by Spectrofluorimetry and HPLC Coupled with Fluorescence Detection (1739 Views since 04 Nov 2013)

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Development and Validation of RP-LC Method for the Determination of Cinnarizine/Piracetam and Cinnarizine/Heptaminol Acefyllinate in Presence of Cinnarizine Reported Degradation Products (2014 Views since 07 Oct 2013)

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The Evaluation of Two Commercially Available, Portable Raman Systems (2281 Views since 10 Sep 2013)

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RP-LC and TLC Densitometric Determination of Paracetamol and Pamabrom in Presence of Hazardous Impurity of Paracetamol and Application to Pharmaceuticals (2541 Views since 05 Sep 2013)

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Development of Methods for the Determination of pKa Values (6390 Views since 08 Aug 2013)

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Biochemical Characteristics of Organic Matter in a Guano Concretion of Late Miocene or Pliocene Age from Manchester Parish in Jamaica (2677 Views since 18 Jun 2013)

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Evidence for the Presence of 1,3-Dimethylamylamine (1,3-DMAA) in Geranium Plant Materials (3671 Views since 06 Jun 2013)

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Determination of the Antiretroviral Drug Acyclovir in Diluted Alkaline Electrolyte by Adsorptive Stripping Voltammetry at the Mercury Film Electrode (3224 Views since 20 May 2013)

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Utility of Experimental Design in Pre-Column Derivatization for the Analysis of Tobramycin by HPLC—Fluorescence Detection: Application to Ophthalmic Solution and Human Plasma (4064 Views since 16 Apr 2013)

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A Rapid Stability-Indicating RP-HPLC Method for the Determination of Betaxolol Hydrochloride in Pharmaceutical Tablets (4351 Views since 11 Mar 2013)

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Evaluation of Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry for Second-Generation Lignin Analysis (4606 Views since 13 Dec 2012)

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Analysis and Confirmation of 1,3-DMAA and 1,4-DMAA in Geranium Plants Using High Performance Liquid Chromatography with Tandem Mass Spectrometry at ng/g Concentrations (8009 Views since 08 Nov 2012)

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Identification and Quantification of Dimethylamylamine in Geranium by Liquid Chromatography Tandem Mass Spectrometry (8358 Views since 06 Aug 2012)

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Simultaneous Determination of Sitagliptin and Metformin in Pharmaceutical Preparations by Capillary Zone Electrophoresis and its Application to Human Plasma Analysis (6990 Views since 30 Jul 2012)

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A Calculation Model for Serum Ionized Calcium Based on an Equilibrium Equation for Complexation (11215 Views since 04 Jul 2012)

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Two Chromatographic Methods for the Determination of Some Antimigraine Drugs (6469 Views since 14 May 2012)

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Holistic Control of Herbal Teas and Tinctures Based on Sage (Salvia officinalis L.) for Compounds with Beneficial and Adverse Effects using NMR Spectroscopy (6310 Views since 21 Mar 2012)

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Development and Validation of Spectrophotometric, Atomic Absorption and Kinetic Methods for Determination of Moxifloxacin Hydrochloride (8563 Views since 07 Nov 2011)

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A Simple and Sensitive Assay for Measuring Very Small Volumes of Microprinted Solutions (7121 Views since 31 Aug 2011)

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Simultaneous Determination of Amlodipine and Valsartan (12107 Views since 28 Aug 2011)

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Conductimetric Biosensor for the Detection of Uric Acid by Immobilization Uricase on Nata de Coco Membrane—Pt Electrode (8665 Views since 03 Jul 2011)

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Erratum for “Determination of Trace Amounts of Lead Using the Flotation-spectrophotometric method” (6316 Views since 06 Jun 2011)

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New Spectrophotometric Method for Determining Nitrogen Dioxide in Air Using 2,2-azino-bis(3-ethyl benzothiazoline)- 6-Sulfonic Acid-Diammonium Salt and Passive Sampling (8257 Views since 29 May 2011)

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The Effect of Varying Short-Chain Alkyl Substitution on the Molar Absorptivity and Quantum Yield of Cyanine Dyes (9870 Views since 23 Mar 2011)

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Low Level Determinations of Methyl Methanesulfonate and Ethyl Methanesulfonate Impurities in Emtricitabine Active Pharmaceutical Ingredient by LC/MS/MS Using Electrospray Ionization (10760 Views since 10 Mar 2011)

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Determination of Trace Amounts of Lead Using the Flotation-spectrophotometric method (9587 Views since 01 Mar 2011)

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A Validated Reverse Phase HPLC Method for the Determination of Disodium EDTA in Meropenem Drug Substance with UV-Detection using Precolumn Derivatization Technique (15552 Views since 23 Feb 2011)

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Floatation-spectrophotometric Determination of Thorium, Using complex Formation with Eriochrome Cyanine R (7424 Views since 24 Jan 2011)

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Determination of Trace Amounts of Lead Using the Flotation-spectrophotometric Method (6508 Views since 20 Dec 2010)

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A Validated Stability-indicating Reverse Phase HPLC Assay Method for the Determination of Memantine Hydrochloride Drug Substance with UV-Detection Using Precolumn Derivatization Technique (20577 Views since 20 Jul 2010)

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Cell-Free Expression of Protein Kinase A for Rapid Activity Assays (9465 Views since 19 May 2010)

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A Modified Method for Determination of Lumefantrine in Human Plasma by HPLC-UV and Combination of Protein Precipitation and Solid-Phase Extraction: Application to a Pharmacokinetic Study (10005 Views since 29 Mar 2010)

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Liquid Chromatography with Post-Column Reagent Addition of Ammonia in Methanol Coupled to Negative Ion Electrospray Ionization Tandem Mass Spectrometry for Determination of Phenoxyacid Herbicides and their Degradation Products in Surface Water (12146 Views since 03 Feb 2010)

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Using a Matlab Implemented Algorithm for UV-vis Spectral Resolution for pKa Determination and Multicomponent Analysis (13358 Views since 14 Dec 2009)

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Quantitative Mass spectrometric Analysis of Ropivacaine and Bupivacaine in Authentic, Pharmaceutical and Spiked Human Plasma without Chromatographic Separation (11501 Views since 28 May 2009)

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Micelle Enhanced Fluorimetric and Thin Layer Chromatography Densitometric Methods for the Determination of (±) Citalopram and its S – Enantiomer Escitalopram (11717 Views since 07 Apr 2009)

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New Spectrofluorimetric Method with Enhanced Sensitivity for Determination of Paroxetine in Dosage Forms and Plasma (10330 Views since 18 Nov 2008)

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Use of Fourier Transform Infrared (FTIR) Spectroscopy to Study Cadmium-Induced Changes in Padina Tetrastromatica (Hauck) (16878 Views since 15 Oct 2008)

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Palm-Based Standard Reference Materials for Iodine Value and Slip Melting Point (18625 Views since 22 Sep 2008)

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Comparison of Gas Chromatography-Mass Spectrometry and Gas Chromatography-Tandem Mass Spectrometry with Electron Ionization and Negative-Ion Chemical Ionization for Analyses of Pesticides at Trace Levels in Atmospheric Samples (16364 Views since 09 Sep 2008)

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Microalbuminuria Measured by three Different Methods, Blood Pressure and Cardiovascular Risk Factors in Elderly Swedish Males (11784 Views since 02 Sep 2008)

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A Simple and Selective Spectrophotometric Method for the Determination of Trace Gold in Real, Environmental, Biological, Geological and Soil Samples Using Bis (Salicylaldehyde) Orthophenylenediamine (13527 Views since 29 Aug 2008)

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Development and Validation of a HPLC Method to Determine Griseofulvin in Rat Plasma: Application to Pharmacokinetic Studies (11996 Views since 27 Aug 2008)

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Micellar Electrokinetic Chromatographic Study of the Separation of an Aromatase Inhibitor and a Tryciclic Antidepressant in the Breast Cancer Treatment (9734 Views since 13 Aug 2008)

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Uncertainty Analysis of Drug Concentration in Pharmaceutical Mixtures (9211 Views since 03 Jun 2008)

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High-Performance Liquid Chromatographic Method for Determination of Phenytoin in Rabbits Receiving Sildenafil (11585 Views since 18 Apr 2008)

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Understanding Structural Features of Microbial Lipases - An Overview (15343 Views since 27 Mar 2008)

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Determination of Key Intermediates in Cholesterol and Bile Acid Biosynthesis by Stable Isotope Dilution Mass Spectrometry (11710 Views since 25 Mar 2008)

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