modified silica hptlc plates

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Thin layer chromatography (TLC), an analytical technique often used to separate and identify compounds present in a given mixture, can also be used to determine the purity of a particular substance within that mixture

Screening for Estrogen Active Nonylphenols in Water by Planar Solid Phase Extraction – Planar Yeast Estrogen Screen

Nonylphenols (NP) are ubiquitous substances that have been detected in highly diverse foodstuff. As breakdown products of nonylphenol ethoxylates, NP could end up in the aquatic environment. This article presents a rapid method for NP detection in surface water

PLC Plates for Separations from Milligrams to Grams

Our Preparative layer (PLC) plates allow separation and purification of samples varying in quantity – from milligrams to grams.

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.

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

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.

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 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 caffeine

HPTLC was used to analyze caffeine in coffee. Filtration of coffee through a PTFE syringe filter was the only sample preparation. Quantitation was conducted with a TLC scanner.

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.

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

Separation of Caffiene

High-Performance Thin-Layer Chromatography: A Fast and Efficient Fingerprint Analysis Method for Medicinal Plants

In this article we present several HPTLC applications and analytical standards for ginsenosides.

Separation of Steviol Glycosides by HPTLC: Introducing a New Stevia Extract Reference Material

HPTLC is an efficient method to determine Steviol Glycosides content in Stevia using our HPTLC plates and reference materials, including a new introduced Stevia extract reference material.

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.

Qualitative Thin Layer Chromatography Analysis Ginkgo

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

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.

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

Separation of Caffiene

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.

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.

Thin-Layer Chromatography Process

What causes a dissolved mixture to separate when applied to a TLC plate? The thin-layer chromatography process relies on capillary forces. During development of the chromatogram, the mixture of substances is first transported by the mobile phase, then resides on

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

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

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.

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.

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.

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.

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.

Solid Phase Extraction & QuEChERS

Browse our website for the full range of systems, devices, and materials for solid phase extraction (SPE) products including cartridges, glass tubes, 96-well plates, QuEChERS tubes (dispersive SPE), online SPE, and vacuum manifolds for all of your scientific needs.

Fast Analysis of Monoclonal Antibodies Using Silica Monoliths Designed for Bioanalysis

Silica monoliths with larger mesopores are a powerful tool for the fast separation of biomolecules including mAbs. The immobilization of protein A on epoxy-modified widepore (WP) silica rods enabled highly reproducible and fast, one minute, separations of mAbs. The Chromolith®

Downstream Applications for Plasmid DNA and Substrates

This page shows downstream applications for plasmid DNA and substances that may interfere in each.

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