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Determination of Quinine in Tonic Water and Caffeine in Coffee and Cola Drinks Using TLC-MS

HPTLC–MS analysis of quinine in tonic water and caffeine in coffee and cola drinks. Tonic and cola drinks decarbonized through ultrasonication, and coffee extracted through PTFE filter.

LC/MS Analysis of Amphetamine Enantiomers on Astec CHIROBIOTIC® V2 in Urine after Solid Phase Extraction (SPE) using Supel™-Select SCX

Shown here is the chiral separation of amphetamine enantiomers under MS-compatible conditions on Astec CHIROBIOTIC® V2 after extraction from urine using Supel™-Select SCX SPE 96-well plates. The highest grade mobile phase solvents and additives were used to supply low background

TLC Analysis of Vitamin C Derivates From Cosmetic Formulation on HPTLC Silica Gel 60 F254s

Separation of Placebo; 1 % Vit C derivat; 1 % Active 2; 2 % Vit C Derivat; 2 % Active2; Reference Vitamin C Derivat; Reference Degradation product

Determination of Lactose in Dairy Products Using TLC-MS

Straightforward HPTLC-MS analysis of lactose in dairy products (milk or yoghurt) using only protein crash, centrifugation and dilution as sample preparation.

Quantification of bitter acids in hops by thin layer chromatography

HPTLC separation followed by UV detection of the bitter acid content in various hop samples.

Milli-Q® Benchtop Water Purification Systems

Find the water purification system that fits your lab’s needs. Compact Milli-Q® pure and ultrapure benchtop systems can meet your application, quality, volume, space and budget requirements.

Catalyst Screening followed by TLC-MS for Reaction Progress Analysis using KitAlysis™

Catalyst screening, KitAlysis™ High-Throughput Screening Kits, Thin layer chromatography (TLC), parallel analysis, parallel synthesisigh-Throughput Buchwald-Hartwig Amination Reaction Screening Kit, TLC-MS analysis

Milli-Q^® Benchtop Lab Water Purification Systems

Find the water purification system that fits your lab’s needs. Compact Milli-Q® pure and ultrapure benchtop systems can meet your application, quality, volume, space and budget requirements.

Oligonucleotide Quality Control & Quality Assurance

The foundation of Sigma's manufacturing process is a robust Quality Management System, which drives compliance to ISO 9001:2008 certification.

TLC Analysis of Caffeine in Coffee Samples, Quantification of Analyte Concentration

Separation of Caffiene

qPCR Gene Expression Using Probe Detection

The most common application for qPCR is the measurement of a gene transcript or copy number quantity relative to one or more reference genes using probe detection.

Determination of Stevioside and Rebaudioside A in Stevia leaves, beverages and food additives using HPTLC-MS

HPTLC-MS was used to analyze stevioside and rebaudioside in artificial sweeteners, stevia plants, cola and isotonic drinks with a minimum of sample preparation.

Determination of Caffeine in Energy Drinks with HPTLC-MS

Thin layer chromatography coupled with mass spectrometry does not require substantial sample preparation. Energy drinks can be applied without dilution directly onto the TLC plate.

Qualitative Thin Layer Chromatography Analysis Ginkgo

Qualitative Thin Layer Chromatography Analysis of Flavonoids and Quantification of Terpene Lactones in Ginkgo Biloba Extracts and Tablets

Thin Layer Chromatography

Thin layer chromatography (TLC) is a separation technique based on differential partitioning of compounds between a solid surface, coated with a thin layer of adsorbent, and a liquid solvent that moves over the solid surface by capillary action.

Ultra-Pure MALDI Matrices

One of the most important aspects of our ultra-pure MALDI matrix substances is their ability to dissolve rapidly and completely; a brief vortex mixing is typically sufficient.

Milli-Q® Consumables

Find consumables that are designed to fit your water purification system. From pretreatment and purification cartridges, to UV lamps and filters—our products are validated with strict quality assurance protocols to give consistent water quality for almost any application.

Detection and Determination of Caffeine, Taurine and Arginine in Shampoos by HPTLC

The modern thin-layer chromatography (TLC) offers advantages also in the field of cosmetics to quickly and simultaneously analyze samples with densitometric detection.

The Best Approaches to Gas Purification

Mass Spectrometry

Mass spectrometry (MS) is an analytical tool used to identify compounds, determine chemical structure, and assess isotopic abundance. In MS, samples are ionized, and the resulting ions are identified based on their mass-to-charge (m/z) ratios.

Sildenafil Citrate USP Method Using HPTLC Plates for the Limit of Imidazole Test

In the present study we demonstrate compliance of silica gel 60 F254 HPTLC plates with USP requirements, and how HPTLC plates are suitable for the Sildenafil citrate-Limit of Imidazole test.

Laboratory Labels

From labels for tubes for cryogenic storage, to chemically resistant labels for harsh and corrosive chemicals, to autoclavable and general-purpose labels, we provide labeling supplies and lab markers to meet your lab sample management needs.

Mass Spectrometry of Glycans

Chromatographic Testing of Black Pepper According to the United States Pharmacopeia

Powdered black pepper was chosen as example for dietary supplements, being a source for pierine. It is tested according to the current United States Pharmacopeia (USP) guidelines using HPTLC and HPLC.

Chiral and Achiral LC-MS Analysis of Warfarin™ in Plasma Samples

his study demonstrates the analysis of Warfarin in plasma samples utilizing chiral and achiral (reversed-phase) LC-MS and effective sample prep to remove endogenous phospholipids

Milli-Q^® Consumables

Find water purification consumables that are designed to fit your Milli-Q® system. From pretreatment and purification cartridges, to UV lamps and filters—our products are validated with strict quality assurance protocols to give consistent water quality for almost any application.

Determination of Sucralose in Soy Sauce using HPLC-ELSD following the Chinese National Standard (GB) Method

The most frequently used synthetic sweeteners are: saccharin, cyclamate, aspartame, and sucralose (E955), and this application illustrate the analysis of sucralose from soy sauce following the current Chinese national standard method.

Identification, Assay and Organic Impurity Profiling Methods for Aripiprazole following the United States Pharmacopeia Monograph

Aripiprazole is an atypical antipsychotic and a partial dopamine agonist. It is primarily used in the treatment of schizophrenia, bipolar disorder, major depressive disorder, tic disorders, and irritability associated with autism. Aripiprazole was first approved by the U.S. Food and

Determination of Rutin in Anti-Aging Skin Cream Formulations Using Chromolith^® HighResolution RP-18 Endcapped Column and UV Detection

This application illustrate how Rutin can be determined in skin cream samples using a monolithic Chromolith® HighResolution RP-18 endcapped column with UV detection.

TLC Silica Gel 60 G Plates with Gypsum

TLC plates, with silica gel, gypsum as binder, International Pharmacopoeia compliant, for identification of Atenolol and Chlorthalidone in tablets

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