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Organic CRM is a reference material, which is mainly used for chromatographic analysis. Organic CRMs are accompanied by a certificate and the needed information is traceable. The organic CRMs have one or more characteristic values, and each characteristic value has a given degree of uncertainty. In general, organic CRMs are prepared in batches, either as a pure substance or as a mixture of several substances with high purity. Commonly used organic CRMs include chlorpyrifos, carbendazim, citric acid, salicylic acid, resveratrol, potassium sorbate, acetone-2,4-DNPH and others.
Analysis of pesticide residues: Chromatographic detection of pesticide residues in food is an important means to protect human life and health, and this method has the advantages of high sensitivity, good selectivity and high accuracy. In addition, the organic CRMs are essential for chromatographic analysis. For example, a standard curve is drawn using carbendazim CRMs. Based on the obtained standard curve, the content of carbendazim in commercial apple juice can be quantitatively analyzed by high performance liquid chromatography.
Analysis of organic pollutants in the air: In order to ensure environmental safety, it is very important to analyze the organic pollutants in the air. Chromatography is an efficient and accurate method to detect organic pollutants in air based on organic CRMs. For example, acetone-2,4-DNPH is an organic CRM, which is critical for qualitative and quantitative analysis of aldehydes in air.
Analysis of organic pollutants in the water: Organic pollutants are one of the main pollutants of water resources, so it is necessary to use chromatography to monitor water quality. Commonly used chromatographic methods include high performance liquid chromatography and gas chromatography, in which organic CRMs are needed to prepare standard curves. By comparing with the peak strength and the peak position of the standard curves, the qualitative and quantitative analysis of organic pollutants can be realized.
The others: In addition to the mentioned fields, organic CRMs can be used in many other fields including cosmetics field, fragrance field, paint field, medicine field and others. For example, based on the standard curves made by mixed organic CRMs, the content of many organic additives in cosmetics can be accurately measured by chromatography.
Alfa Chemistry is one of the largest providers of organic CRMs for chromatography in the world and the quality assurance is of prime importance to Alfa Chemistry. The solvent from Alfa Chemistry in the world is synonymous with reliability and excellent quality. Because of the exacting nature of our business and the regulatory demands placed upon our industry, Alfa Chemistry continues to be at the forefront in terms of compliance, accreditations and certifications.