19 Oxidation Test Reactor
OXITEST is the innovative advanced analytical solution for oxidation stability studies of Velp Scientifica. Chemical reactions occurring between atmospheric oxygen and food sensitive components are some of the most important causes of product degradation. Specifically, fat oxidation is recognised as one of the main factors which affects food shelf life. OXITEST is able to provide the lab operator with high added value information related to the fat oxidation processes in samples of foods such as milk powder, cheese, pasta sauces, bread substitutes, oils and fats.
The determination of the oxidation stability of samples (solid, doughy or liquid), in order to determine their quality or to determine their state of preservation is made directly on the whole sample, without preliminary fat separation. The operational activities are extremely simple and intuitive and allow time saving for the lab operator. The evaluation of oxidation stability can be accelerated, using comparatively high temperatures (20 - 110°C), in the presence of a measurable oxygen pressure.
Useful information is obtained by recording the decrease of oxygen pressure, since oxygen is consumed during fat oxidation. The instrument is equipped with two separate titanium oxidation chambers in order to analyze the same sample in duplicate or to analySe different samples at the same time and in the same working conditions. Up to two instruments can be operated from a single PC with USB connection.
The software controls the entire operation in a user friendly way. The operator can visualiSe the data recorded in a database, compare tests, export the data to an Excel file, filter and order the data.
Most important fields of application: oxidation stability of oils, fats or of food and feed samples, rapid comparison among different product formulas or verification of different lots of the same raw material, evaluation of the performance of different packaging materials and evaluation of the effectiveness of the antioxidants.
Circle no. 348
High Purity Water for Materials Testing
ELGA Process Water has supplied a second CENTRA R200 water purification system to Serco Technical Consulting Services at their Risley laboratory near Warrington. Serco provide a broad range of unique science and engineering based services that help maintain a safe operating environment across the nuclear, defence and rail sectors.
“In the corrosion laboratories, we run critical experiments for very high profile clients where the reliability of results is paramount”, said Peter Brown, Serco’s Corrosion Laboratory Manager. The new water treatment system comprising a CENTRA R200 with two service deionisation (SDI) cylinders will provide high purity water needed to support this critical application.
The CENTRA R200’s reverse osmosis module removes over 90% of dissolved minerals and over 99% of organics and bacteria from the Risley mains water. The resulting ‘permeate’ is delivered into the CENTRA R200’s integral 350-litre storage tank from which the treated water is continuously pumped through the two SDI cylinders operating in series.
This ‘polishes’ the water to the required
10MW.cm resistivity. Water quality is monitored between the two cylinders and, when required, these are exchanged for fresh cylinders.
“We have been users of ELGA water purification systems for many years and have relied on them to produce the high purity water that we need”, said Peter. “Not only does the new CENTRA system ensure the levels of water purity are continually high, but ELGA Process Water’s engineers have supported us in getting the system running and integrated with our laboratories.”
Circle no. 349 It isn’t brain surgery AB SCIEX makes LC/MS/MS food testing easy
Food analysis with LC/MS/MS can be as challenging as it is powerful. Our state-of-art systems, software, and pre-configured tests simplify the entire process – from methods development to final results. And our worldwide network of service and training professionals provide all the support you need.
AB SCIEX LC/MS/MS. The smart approach to food testing. For more information, visit
www.absciex.com/food_la
AB SCIEX QTRAP® 5500 System
For Research Use Only. Not for use in diagnostic procedures. © 2011 AB SCIEX. The trademarks mentioned herein are the property of AB Sciex Pte. Ltd. or their respective owners. AB SCIEX™ is being used under license.
Circle no. 350
Spotlight
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