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Latest App Notes & Case Studies

App Note / Case Study

Determination of Sudan I and its Analogues in food

Sudan I is the common name given to 1-phenylazo-2-naphthol, a fat-soluble dye used industrially to colour oils, waxes, greases, varnishes etc. It has been recognised by health authorities as being potentially carcinogenic, and is banned as a food additive in the UK and across the European Union.
App Note / Case Study

Analysis of Inorganic Cations in Drinking and Waste Water by Cation Exchange Chromatography with Conductivity Detection

Inorganic cations are significant indicators of the quality of drinking waters and their suitability for human consumption. They have important physiological effects and they alter the palatability of water.
App Note / Case Study

Ultra Low Detection Limits for Inorganic Anions and Cations in Power Station Boiler Water Analysis

Boilers used in power stations hold ultra pure water, the purity of that water needs to be determined by highly sensitive techniques. Ion Chromatography is a technique which offers high sensitivity.
App Note / Case Study

Sugars in Soft Drinks and Wine

Carbohydrates are important constituents in both food and drink. They are frequently added to improve the flavour and palatability to the consumer. Non-alcoholic drinks, especially carbonated soft drinks, can have as much as 10.7 g of sugars added to them. Although there are specific carbohydrate columns for the separation of mixtures of sugars these can be expensive.
App Note / Case Study

EPA Priority Pollutants in Water

It normally takes some 40 minutes to analyse a 16 component mixture of polyaromatic hydrocarbons (PAHs) or polynuclear aromatic hydrocarbons (PNAs). With the aid of the WaveQuest UV/Visible HPLC detector, this analysis is greatly speeded up to 4 minutes and can now be performed on a routine basis.
App Note / Case Study

Determination of Oil in Wax

Although wax was originally treated as a waste product by the oil refining industry, it is now widely used in manufacturing because of its specific mechanical and physical properties. As oil content is one significant parameter in the composition of wax that affects its physical properties, it needs to be measured routinely.
App Note / Case Study

Sample Reformatting and Sample Archiving

Biobanking is becoming a central element in the study of patient genetic data and clinical application of genetic research. Until recently, collections of DNA samples have tended to be fairly small and localized with varied sample containers that were unsuitable for an increasing throughput and automated system use.
App Note / Case Study

Reading Racked 2D-Coded Cryo Tubes directly from -80ºC Freezer

With the storage of biological samples such as DNA, protein, blood fractions and viable cells becoming commonplace. The need to store them at lower temperatures has resulted in reading challenges for traditional rack readers.
App Note / Case Study

Data Acquisition and Analysis of 7-ethoxycoumarin and its Metabolites Using TurboDDS Software in the 500-MS Ion Trap

The ion trap is a powerful tool for metabolism studies, due to the MSn capability for the identification of metabolites and structure elucidation of unknown peaks. The TurboDDS™ software on the Varian 500-MS LC Ion Trap eliminates the need to do multiple runs in order to identify metabolites. Once the expected m/z of a metabolite is entered into the method, the 500-MS will automatically look for this m/z and when found, will immediately trigger an MSn experiment.
App Note / Case Study

Complementing Next Generation Sequencing Technologies With Agilent’s SureSelect DNA Capture Array

Massively parallel DNA sequencing technologies are of pivotal importance in genome biology and medicine, as they can potentially enable comprehensive and systematic evaluation of genetic variation. Currently, these sequencing technologies are geared toward sequencing whole genomes.
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