By Leo Raab on 6/1/2015 12:00 AM
Food Pharm Diet

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.

By Leo Raab on 1/20/2015 12:00 AM
Agilent 6495 Instrument

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.

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...

By Leo Raab on 3/26/2014 12:34 PM

A new Agilent 7700x ICP/MS has been installed, validated and currently running samples for EPA Methods 200.8 and 6020. The instrument is about twice as sensitive than our previous ICP/MS Agilent 7500ce model. The new instrument is equipped with an Integrated Sample Introduction System (ISIS) which increases sample throughput while reducing difficult matrices such as seawater and brines samples. The addition of this instrument increases our capacity while allowing us to further segregate methods and matrices to streamline processing of samples, resulting in enhanced turnaround time for our customers...

By Leo Raab on 2/15/2013 12:00 AM
OI Analytical - Cyanide

Weck Laboratories has received NELAP certification for a new Cyanide method in wastewater matrices from the California Department of Public Health. The new method, offers lower detection limits, and fewer interferences than in the routine EPA 335.4 method currently employed. On April 17, 2012 the USEPA Administrator signed a Method Update Rule (MUR) approving new methods for analysis of NPDES wastewater samples...

By Leo Raab on 2/15/2013 12:00 AM
Shimadzu TOC

Cleaning validation for production equipment at pharmaceutical facilities is an evaluation that is conducted to prevent cross-contamination from previously processed products and detergent used for equipment cleaning, as well as foreign material from the environment that could be present in in the production equipment...

By Leo Raab on 8/1/2012 12:00 AM

GCMSCalifornia 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)...

By Leo Raab on 7/13/2010 4:25 PM

Weck Laboratories acquires Agilent Technologies new 7000B Triple Quadrupole Gas Chromatograph/Mass Spectrometer (GC/MS/MS), delivering high confidence in ultra-trace level results, while shortening analysis times for target compounds in complex samples. The 7000B provides femtogram-level sensitivity for analyses such as pesticides, PAHs, PCBs, pyrethroids, THC, and steroids in food, environmental, pharmaceutical, and forensic matrices. Advanced GC and MS/MS technologies translate into everyday high performance. MS/MS techniques are most often cited for consistent, ultra-low detection limits with very complex sample matrices...

By Leo Raab on 12/1/2008 4:00 AM
Weck Laboratories has added a 2nd new LCMSMS system. The Applied Biosystems 4000 QTrap is a high performance ion trap and a high sensitivity triple quadrupole mass spectrometer in one system. It's primary use is for new methods development and for pharmaceuticals, personal care products & endocrine disruptors analysis. Our PPCP/EDC target compound list is now expanded with lower detection limits. Our first LCMSMS, a Varian 1200L system, runs routine samples for EPA 535 UCMR2 and EPA 331.0 perchlorate.
By Leo Raab on 2/1/2007 4:00 AM
ICP MSInductively Coupled Plasma-Mass Spectrometry (ICP-MS) is widely acknowledged as the premier technique for trace metals analysis. It provides much greater sensitivity than ICP-OES, and far higher sample throughput than sensitive, but slow GFAA. ICP-MS meets both these requirements, over a wider analytical working range, and is capable of simultaneously measuring the hydride elements and trace Mercury, while adding semiquantitative and isotopic analysis capabilities...
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