By Leo Raab on
12/1/2015 12:03 AM
Neonicotinoids are a class of neuro-active insecticides chemically similar to nicotine. The most common members of the neonicotinoid family are acetamiprid, clothianidin, imidacloprid, dinotefuran, thiacloprid and thiamethoxam.
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By Leo Raab on
12/1/2015 12:02 AM
Aquatic herbicides are chemicals specifically formulated for use in water to kill or control aquatic plants. They are applied directly to the target plant or dispersed within the water for the purpose of treating invasive weeds.
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By Leo Raab on
12/1/2015 12:01 AM
Hydrazine has numerous commercial uses. In the 1950s and 1960s its primary use was in rocket propellants. By 1980 other uses were prevalent as precursors, blowing agents, corrosion inhibitors, etc.
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By Leo Raab on
6/1/2015 12:00 AM
Weck Laboratories has expanded the suite of tests offered for contaminants in food products including produce, fish tissue, pharmaceutical formulations, nutritional supplements and raw materials.
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By Leo Raab on
1/20/2015 12:00 AM
Agustin Pierri recently completed his doctorate in chemistry at the
University of California at Santa Barbara where his graduate work focused on
development of photoactive drugs and nanocarriers for the targeted delivery of
small molecules to biological targets. Agustin has worked in the Liquid
Chromatography Tandem Mass Spectrometry (LCMSMS) department of Weck Laboratories
since 2007 and is now leading new method development for all departments.
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By Leo Raab on
1/20/2015 12:00 AM
Weck laboratories has two LCMS and two GCMS triple quadupole mass spectrometers.
We are retiring our original LCMS instrument (purchased in April 2005) and
replacing it with the latest offering from Agilent Technologies, the 6495 LCMS
triple quadrupole mass spectrometer, for use with applications requiring the
highest sensitivity and robustness. This system is designed for both routine
laboratory analysis and for the most challenging quantitation in environmental
and food safety applications.
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By Leo Raab on
3/26/2014 12:34 PM
Brandon, currently a Project Manager at Weck Laboratories, has recently obtained a Certificate in Recycling and Solid Waste Management from UCLA extension; this is a twenty four unit program, which has been earned with distinction.
Brandon joined Weck Laboratories in September of 2006 and prior to becoming a Project Manager, has worked in the Organic Department of the laboratory performing sample preparation, GC and GC/MS analysis of environmental samples. In March of 2014 he has been promoted to Senior Project Manager.
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By Leo Raab on
3/26/2014 12:34 PM
Arsenic speciation of both inorganic and organic forms in aqueous matrices is performed by Ion Exchange technique using HPLC/ICPMS instrumentation. Aqueous matrices include ground water, surface water, seawater, fruit juices, etc...
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By Leo Raab on
8/1/2012 12:00 AM
California Department of Public Health (CDPH) approves Weck Laboratories for Dioxin analysis of drinking water samples! Weck Laboratories can now test for the 2,3,7,8-TetraChloroDibenzoDioxin (2,3,7,8-TCDD) isomer for drinking water compliance monitoring. The determination is accompplished by EPA test method 1613B with a reporting limit of 5 picograms per liter (pg/L)...
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By Leo Raab on
8/1/2012 12:00 AM
Eduardo Morales of Weck Laboratories presented a poster on August 6th thru 10th, at the NEMC Washington D.C. conference on the research topic: Stability Assessment of Organophosphorous Pesticides During GCMS Analysis in the Presence of Analyte Protectants and Frequently Used Organic Solvents...
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By Leo Raab on
4/1/2009 4:00 AM
As a degradation product of alkanolamine and alkylalkanolamine solutions, , also known as bicine, is commonly found in gas treating amine solutions. The proposed pathways for the formation of bicine in amine solutions are all from alkanolamines and alkylalkanolamines such as DEA and MDEA. For example, some possible pathways are by either reacting DEA with glyoxal or through direct oxidation of DEA, MDEA, or TEA by O2 or SO2. Studies have shown...
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