Dikma Technologies Inc. products

In 2003, USDA scientists developed a groundbreaking sample preparation method for multi-pesticide residue analysis in a wide variety of food and agricultural products. The QuEChERS (pronounced “catchers“) procedure entails a number of simple processing steps and is thus fast and easy to perform with little susceptibility to errors. QuEChERS provides high recoveries for a very broad scope of pesticides belonging to various chemical classes and delivers the final extract in acetonitrile, thereby giving full flexibility in the choice of the determinative analysis technique. Direct connection with liquid and gas chromatography is possible.

ProElut LLE+ has been widely applied in the sample preparation of urine, whole blood, plasma, serum, gastric juice, liquor, amniotic fluid, and animal and plant tissue. Classical liquid-liquid extraction using a separation funnel is often associated with certain disadvantages such as formation of emulsion, poor phase separation, high solvent consumption, low degree of automation, and high personnel cost. However, liquid-liquid extraction is more efficient using ProElut LLE+ cartridges. The simple and excellent performance of ProElut LLE+ cartridges eliminates emulsions and therefore, results in higher recoveries and cleaner extractions.

Particulates can damage expensive equipment, valves, columns and pumps. They can also lead to erratic analytical results. Pre-filtering samples prior to analysis is critical in preventing column and frit blockage, undue wear on valve seals, and abnormally high operating pressures. ProMax syringe filters are designed for economical, rapid filtration of almost any solution prior to analysis. The housing attaches to any standard Luer lock syringe, so the sample can be pushed through the membrane under pressure. The resulting eluent is free from particulates and ready for use in HPLC, GC or other analytical techniques.