Articles

HPLC Analysis with Diode Array Detection

HPLC Analysis with Diode Array Detection

High-performance liquid chromatography (HPLC) ‒ one of today’s most common sample analysis techniques ‒ separates compounds from a soluble mixture for the identification of target analytes. Using diode array detection (DAD) with HPLC analysis provides flexibility to produce specific results for beverage, food, dietary supplement, and other personal products markets. HPLC with DAD  provides fast, accurate, and cost-effective analysis for drugs, pharmaceuticals, nucleic acids, proteins, lipids, carbohydrates, antioxidants, and other compounds. The Basics of Liquid Chromatography Like all chromatographic methods, liquid chromatography has a mobile and a stationary phase. The mobile phase carries the sample over the stationary phase, called...

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Advantages of Gas Chromatography

Advantages of Gas Chromatography

Advantages of Gas Chromatography Since its development in 1952, gas chromatography (GC) has been (and remains) one of the most widely used techniques in analytical chemistry. GC separates and quantifies components in a sample mixture and is used globally to analyze many different types of organic compounds. GC testing is used in research, forensics, environmental safety, healthcare, food analysis, and quality control. Understanding the process behind GC, its advantages and disadvantages, and its partner techniques, can help you determine if it is the right technique for your testing needs. CG System Components There are three parts to a gas chromatography...

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Food Laboratory Testing Services

Food Laboratory Testing Services

Food is awesome. The right nutrition fuels our bodies and brains to operate at optimal levels. What is and is not in our food keeps us healthy and active. For public safety and educated consumer consumption, the Food and Drug Administration (FDA) regulates the food industry. An ISO/IEC 17025:2017 accredited food testing laboratory uses standardized methods for food safety evaluations and nutritional panel testing.    The information age combined with growing disposable income has consumers seeking and demanding sustainably sourced high-quality foods. For food producers and marketers, a product with third-party certification offers consumers verification that the product is what...

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High-Performance Thin-Layer Chromatography (HPTLC)

HPTLC Our Capabilities

High-Performance Thin-Layer Chromatography (HPTLC)

High-performance thin-layer chromatography (HPTLC) is a powerful analytical technique that relies on polarity differences to separate the components of a mixture. HPTLC is used to assess substance purity and identify constituents and active substances in a mixture. Pharmaceutical analysis, food and drug analysis, environmental analysis, biochemistry, and most chem-based fields depend on HPTLC. HPTLC is an enhancement of ordinary thin-layer chromatography (TLC) and follows a nearly identical process to TLC. It will be easier to understand HPTLC if you first have a basic understanding of ordinary TLC.    What is TLC?   TLC is a sub-class of planar chromatography. It is...

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Certificate of Analysis for Food & Dietary Supplements

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Certificate of Analysis for Food & Dietary Supplements

If you are wondering how to get a certificate of analysis for your food, pet food, dietary supplement, or personal care product, CTLA is an analytical testing laboratory ready to meet your needs. CTLA operates with ISO/IEC 17025:2017 accreditation, making us a reliable and competent third-party laboratory.

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