Hamilton Company

Articles by Hamilton Company

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Synthetically derived food and beverage dye analysis to meet regulatory requirements aimed at reducing the risk of allergies, cancers, and attention deficits.

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Essential oils have been a staple of the food, fragrance, and health markets for many years. Owing to their unique composition, essential oils can be used for a variety of applications.

Organic arsenic compounds added to feed stocks of chicken and poultry pose serious environmental and ecological threats. National and worldwide health organizations, such as the U.S. Environmental Protection Agency and the U.S. Food and Drug Administration, have recently implemented more stringent concentration limits for arsenic species in drinking water and foodstuffs.

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Special Issues

Environmental laboratories analyze customer samples to determine the concentration of contaminants in soil, drinking water, and so on. Frequently these samples are diluted prior to analysis by the ICP-MS. It is critical that these dilutions are accurate and reproducible. In this study we compared the speed, accuracy, and consumable costs for common sample preparation techniques and found that the Microlab 600 is the best option.

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Analysis of arsenic species is made challenging due to diverse sample matrices. To circumvent these problems, an HPLC ICP-MS method has been developed. Resolution of arsenic compounds is achieved by ion exchange chromatography on a Hamilton PRP-X100 column, a 55% cross-linked polystyrene-divinylbenzene copolymer functionalized with quaternary ammonium anion-exchanger group.

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The Application Notebook

Hamilton PRP-X100 and PRP-X110 are the perfect solution for anion analysis in water or environmental samples. The robust design and covalent surface modification of the packing material lead to a highly increased lifetime as compared to the competition. The production process is compliant to ISO 9001 ensuring an outstanding column-to-column and lot-to-lot reproducibility.

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The Application Notebook

Organic arsenic compounds added to feed stocks of chicken and poultry pose serious environmental and ecological threats. National and worldwide health organizations, such as the United States Environmental Protection Agency and the US Food and Drug Administration, have recently implemented more stringent concentration limits for arsenic species in drinking water and foodstuffs.