Recent Articles in Laboratory Exhibitions and Conferences
DETERMINATION OF PAH IN GROUND, SURFACE AND DRINKING WATER USING SYMBIOSIS ENVIRONMar 21, 2010
Polycyclic Aromatic Hydrocarbons (PAH), a group of chemically related compounds, are known for their potential carcinogenic properties. In the environment these compounds are formed during pyrolysis and incomplete combustion processes. They are found throughout the environment in air, water and soil. The (by law enforced) maximum acceptable concentration level of PAH in water is approximately 10 ppt for each individual component.
Read MoreBinary prep. HPLC-system for processing large volumes of ureacontaining protein solutionsMar 18, 2010
Often client specific requirements for multipurpose equipment can not be solved with “off the shelf“ solutions. In this specific case, the Kronlab custom build approach proved very useful: every component has been specifically approved for the application at hand and following a specified procedure it is integrated into an LC system. The result is a made-to-measure system.
Read MoreDionex Beverage Application Notebook Demonstrates Unique Analytical Solutions for Commonly Used BeveragesMar 17, 2010
The Dionex Beverage Application Notebook, a compilation of beverage applications in an easy-to-use PDF, is available on the Dionex website at www.dionex.com. The global beverage industry is growing each year with the introduction of new products, such as vitamin-fortified water, energy drinks, anti-aging water, and herbal nutritional supplements.
Read MoreMATRIX GEMINI LIMS AT WORK IN CANCER RESEARCH TRIALSMar 15, 2010
The Roy Castle Lung Cancer Foundation (RCLCF) is a UK wide charity, dedicated to the defeat of lung cancer. It funds basic science research, tobacco control initiatives and work in lung cancer patient information, support and advocacy.
Read MoreTracking Down Fake CashmereFeb 28, 2010
New application note from Retsch GmbH
Due to the fact that only a very small amount can be won from each animal, cashmere wool is an expensive resource for the textile industry which makes it susceptible to falsifications. Instead of cashmere, the cheaper sheep wool is used and the product is then declared as genuine cashmere. Or products only contain a small amount of cashmere while the rest is wool from other animals which is processed without declaration.
The research laboratory of Shell Global Solutions in Amsterdam has recently been equipped with state-of-the-art particle measurement systems for catalyst research. By using two instruments from Retsch Technology the Shell researchers are now able to determine particle sizes in a range from 10 nanometers to 30 millimeters.
Read MoreAutomating Viral RNA GenotypingFeb 18, 2010
Agilent Automation Solutions has released a new applications bulletin that describes an automated system for rapid characterization of pathogens, including for example the Influenza A (H1N1) virus.
Read MoreMelamine Contamination Resurfaces in China!Feb 9, 2010
The 2008 China melamine scandal in which the discovery of milk powder adulterated with melamine led to a global recall of Chinese infant milk formula, chocolates, biscuits, cakes, and other milk-based products is resurfacing. This month, the China Daily reports that melamine-contaminated milk-based products from three companies have been removed from shelves in the Guizhou province.
Read MoreLaborama 2010 : Exhibition hall is full - 11th edition looks once again promising Brussels Kart Expo, 11 and 12 March 2010Jan 26, 2010
The organizers wish to thank the exhibitors for their trust and confidence. Laborama has truly become the Belgian reference meeting in the laboratory sector and the present format of a 2-day exhibition remains suitably for both exhibitors and visitors.
Read MoreDionex Applications for Securing Purity of Anti-Coagulant HeparinJan 15, 2010
Dionex Corp. is pleased to announce the availability of two application notes created in support of the official release of the United States Pharmacopeia (USP) stage 2 heparin sodium monograph, published October 1, 2009
Read MoreTechnology fair HET Instrument moves to the RAI in AmsterdamJan 8, 2010
The largest technology event in the Benelux moves from Utrecht to Amsterdam. HET Instrument will be organised in the RAI in Amsterdam in 2010, 2012 and 2014. FHI, Federation of Technology Branches that organises the event, signed an agreement to this effect with the management of Amsterdam RAI on 11 September at FHI’s office in Leusden.
Read MoreThermo Scientific CONNECTS at GPSG Brazil Delivers Enterprise-Level Productivity Linking Laboratories to ERPJan 8, 2010
New customer case study available from Thermo Scientific
Read MoreDetermination of Primary Drying End PointJan 6, 2010
SP Industries Inc. has issued a new technical note that compares and contrasts different techniques for primary drying end point determination.
Read MoreThe Bio-ChromatographersDec 30, 2009
Simply high dynamic binding capacities (DBC’s) are no longer sufficient. High DBC, at high flow rates with close to 100% recovery, across a wide range of molecular weights, this is what chromatographers look for in modern ion exchange resins. “BioPro” YMC’s hugely successful ion exchange material offers exactly this. The growing user base confirms very good separation, high dynamic binding capacities and excellent recoveries for the anion as well as the cation exchanger material.
Read MorePreheating of mobile phases - "nice-to-have" or "need-to-have"?Dec 30, 2009
Controlling the temperature of a column is a prerequisite for reproducible results in HPLC. Column ovens are part of most HPLC systems and many of them offer space even for semi preparative columns. But with increasing inner diameter the heat transfer from the air surrounding the column to the whole cross section of the column (filled with the cold mobile phase) becomes more and more difficult. This may result in bad peak shapes, as the radial temperature gradientcauses different separation conditions for every part of the sample depending on its distance to the outer diameter.
Read MoreHPLC-Tip: Degassing of the mobile phaseDec 30, 2009
A released gas in mobile phases during analysis causes noisy baselines and pressure fluctuations which affect sensitivity and reproducibility. It also severely compromises the use of fluorescence-, refractive-index- or UV-detectors (particularly at wavelengths below 210 nm). As a consequence effective mobile phase degassing must be employed for many analyses.
Read MoreUltra Fast LC for Peptide mappingDec 29, 2009
In order to succeed in developing protein-based drugs, a fast and easy detection of alteration within the protein structure is necessary. In many cases, peptide mapping is the method of choice, where proteins are analysed after digestion.
Read MoreFast routine analysis of alkaloidsDec 29, 2009
The method transfer from a conventional column to an ultra fast analysis for alkaloids has shown that the use of YMC-UltraHT 2 µm column and adjustment of flow parameters for the smaller column dimensions can reduce the analyses time by about 85% accompany with significant solvent savings and significant solvent savings whilst increasing the sample throughput in the laboratory.
Read MoreHPLC hint: The advantage of premixed solvents in HPLCDec 29, 2009
For several reasons the storage of 100% pure solvents in the reservoir bottles of an HPLC system can be a problem. Pure acetonitrile, in particular, affects the system by adsorption of polymers from transmission lines resulting in sticky surfaces that inhibit the opening and closing of the valves
Read MoreSimultaneous separation of pesticides by LC/MSDec 29, 2009
With the constantly rising population and frequent uncertain weather, the need for high yielding agriculture is paramount. This means that use of plant protection agents, such as herbicides and insecticides is necessary, in order to secure harvests.
Read MoreNormal Phase Chromatography Dec 28, 2009
Normal phase chromatography is not very popular with most analytical HPLC users. Poor reproducebility of the results is often cited as an argument against normal phase chromatography.
Read MoreFastLC Application for CurcuminDec 28, 2009
The plant pigment curcumin, found in the popular Indian curry spice turmeric, is well known as an antioxidant for foods. However, researches have paid attention to another characteristic. Curcumin is highly active against the growth of certain cancers.
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