Category Archives: deoxynivalenol

AOAC International Meeting

fountainThe AOAC International held their annual meeting in Chicago, Illinois from August 25-27, 2013.

Pickering Laboratories were on hand to share our latest methods and instruments.  We also gave an Exhibitor Presentation titled “An Automated Highly Sensitive Method for Aflatoxin B/G or Ochratoxin A Clean-up and Analysis – A Novel Approach in Mycotoxin Analysis”

The purpose of the talk was to showcase our newest method and instrument:

Building on the FREESTYLE Automated Sample Preparation Instrument, the new ThermELUTE module and columns enable rapid, sensitive analysis of Aflatoxin or Ochratoxin A. The ThermELUTE module uses a thermal denaturation technique to release jellybean4toxin from a new column format requiring only 20% of usual solvent volumes, and FREESTYLE quantitatively transfers the eluate into the HPLC. In combination with online injection, analytical sensitivity can be increased without manual manipulation. The increase in sensitivity provides a reduction of sample load, while maintaining excellent chromatographic results. The increase of sensitivity allow analysis of mycotoxin levels well below regulatory limits.

The ThermELUTE takes the separate steps of cleanup and analysis, and combines them into one automated system. Using a FREESTYLE robotic system equipped with the

FREESTYLE Automated Sample Preparation System
FREESTYLE Automated Sample Preparation System

ThermELUTE module, we can now clean up a sample for mycotoxins, and then directly inject the cleaned sample onto the HPLC column for analysis!

Automating Mycotoxin Analyses from Cleanup to Detection:

  • Results 3 times faster
  • 80% less solvent
  • Direct connect to HPLC

The brochure for ThermELUTE can be found HERE. To view the slides from our presentation, click HERE.

 

2013 Pickering Laboratories North American Catalog

Our latest Catalog for North America is now available!

Click on the link to download the latest product Catalog from Pickering Laboratories, Inc.

Pickering Catalog: http://pickeringlabs-retentiontimes.com/wp-content/uploads/2013/08/2013_PickeringLabs_Catalog_NorthAmerica_LowRes.pdf

Inside our catalog you will find a complete product listing for all instruments and consumables we currently have available. From Sample Cleanup to Post-Column Derivatization, to artificial Perspiration and Saliva, we hope you find something you will find useful!

Pickering Laboratories in 2013

By Wendy Rasmussen

In recent years, we have released several new products and applications, and with still more on the horizon, it occurred to me that now would be a great time to summarize the Pickering of today – our mindset and our wide variety of products & applications.

Acai Berries
Acai Berries

No longer are we simply the “Post-Column Company”. We are the “Automated-Sample Antioxidants” company.  Think of us as the new “super fruit.” The Acai berry, or perhaps the new Chia Seeds (incidentally, we do have a post-column application for the identification & quantitation of  Antioxidants in a variety of matrices).

We are still very active, and we as a company plan to be here for many years to come. We are still the company founded on chemistry and a desire to to teach, to spread our technical expertise, to support our customers.

It’s been a few years now since Pickering began distributing and supporting our LCTech Product line.  The products have shown an ever increasing interest here in the US and in Canada (our official Sales Territory for this product line). We are very proud to offer these products and we hope we can develop it further in the future.

Historically, we have provided the back-end of an analysis (post-column derivatization). Nowadays, we can provide the front-end of analysis as well (the sample-cleanup).

In thinking about our product offerings, I realized that a simple list does not effectively show the scope of the products we have to offer in 2013 – primarily because we have a lot of overlap between products and product lines.  We’re not a vertical company in that regard.  I suppose one could say our product offerings are more circular in that many do not fall into a single distinct category.  I am a very visual person, and for me, a Venn diagram and our overall “product scale” really helped to understand and clarify our products:

Venn Diagram of Pickering Laboratories
Venn Diagram of Pickering Laboratories
General "Product Scale" for Pickering Offerings
General “Product Scale” for Pickering Offerings
For those of who like lists, you can find one Here, on Pickering’s website, and on LCTech’s Website

For any Questions, please feel free to contact us:

Pickering Laboratories, Inc.
Mountain View, California
Email: sales@pickeringlabs.com
Phone: (direct) 650-694-6700 or (toll-free) 800-654-3330

 

Image of Acai Berries:  http://acaiberryeducation.com/

On-Demand Webinar: Rugged and Sensitive Analysis of Mycotoxins in Food Matrices

If you missed the live webinar last summer, you can still hear the Webinar On-Demand! Just click on the links below to launch the presentation.
On August 14th, 2012, in collaboration with Thermo Scientific, Pickering Laboratories participated in a free webinar titled: Rugged and Sensitive Analysis of Mycotoxins in Food Matrices
 
The webinar was hosted by LC/GC Magazine and Thermo Scientific.
 
Live Webcast: Tuesday, August, 14, 2012 at 8:00 am PDT; 11:00 am EDT; 15:00 GMT

Register Free at http://www.chromatographyonline.com/foodmatrices
EVENT OVERVIEW
Mycotoxins are found in a staggering range of matrices, from grains to fruits, spices and nuts to animal feed. They are of major concern for their negative impact on the worldwide economy from product revenue losses, their toxicity to animals and humans, and their persistence throughout multiple food processing steps.Learn how Pickering Laboratories addresses this challenge and meets guidelines set by the FDA using sensitive and rugged Thermo Scientific UHPLC methods to effectively detect Aflatoxins as well as other key classes of Mycotoxins. These easy-to-use methods utilize immunoaffinity clean-up and post-column derivatization.

Also join us to discover the benefits of a Thermo Scientific LC-MS/MS method using automated Turbulent Flow sample extraction to separate Mycotoxins from complex food matrices. A highly efficient solution used in high throughput laboratories that eliminates manual sample preparation, improves method reliability and drives down cost per sample.

Who Should Attend
Analytical Chemists
Lab Managers
Food Science Researchers
Presenters
Wendy E. Rasmussen
Wendy E. Rasmussen
Technical Expert
Food, Agricultural and Environmental Markets
Pickering Laboratories
Markus M. Martin
Markus M. Martin
Solutions Manager LC/MS
Thermo Fisher Scientific
Dr. Yang Shi
Dr. Yang Shi
Senior Applications Scientist
LC/MS Applications
Thermo Fisher Scientific
Laura Bush
Moderator:
Laura Bush
Editorial Director
LCGC North America
Presented by
Sponsored by
LC/GC Logo
Thermo Logo
 

New Mycotoxin Cleanup Columns!

Also on display this year at Pittcon were the a couple of NEW! Mycotoxin clean-up columns available from Pickering Laboratories:
AflaCLEAN SMART
The immunoaffinity column AflaCLEAN SMART is designed for sample clean-up for subsequent Aflatoxin analysis. 
This columns is smaller than the other counterparts on the market – it uses only a fraction of the solvent and yet has 100ng loading capacity as specified by the AOAC methods. 
During extraction, dilution, washing, sample loading and elution, more than 80% of the solvents can be saved.

The final elution volume is only 400uL instead of the typical 2mL – and yet has the same final concentration as with other columns.  As most methods inject only 20-50uL of sample onto the autosampler, this volume is more than enough for analysis. 

These columns can also be used with the very convenient and affordable EluVac vacuum manifold.

If you would like additional information, please email us: sales@pickeringlabs.com

DONeX
The DONeX column can be used in the sample preparation for the analysis of the mycotoxin Deoxynivalenol (Vomitoxin), which is often found on contaminated cereals and grains such as corn. 
The column is ideally suited to many common matrices such as corn, barley, oat, wheat, rye or cereal-based feed. The advantage of DONex is that these columns can also be used with complex matrices and one can stll obtain excellent recovery rates. 
DONeX is used with a sample load of 1 g for HPLC / post column / fluorescence detection or LC / MS.  By increasing the matrix load up to 4 g on column, users with HPLC / UV detection systems can reach detection limits as low as 200 ppb. 
Unlike our other Mycotoxin clean-up columns, DONeX is not an immunoaffinity column, and so it can be stored on the shelf and has an undefined shelf-life.
The DONeX clean-up column is based on a 3mL standard form and thus perfectly suitable for automated handling in the LCTech systems AcceCLEANTM and FREESTLYETM SPE
If you are interested in any additional information or would like to try a sample, please send us an email: sales@pickeringlabs.com

Pickering Products

Mycotoxins: Clean-up Columns, ELISA Kits, Post-Column Derivatization Instruments & Methods, SPE manifolds (manual & automated) for the analysis of:

Aflatoxins
Ochratoxin A
DON
Nivalenol
Fumonisin FB1, FB2
Zearalenone
Ergot Alkaloids

Post-Column Derivatization: Pinnacle PCX, Vector PCX, UVE Photochemical Reactor, Columns, Reagents, Eluants for the analysis of:

Antioxidants
Mycotoxins (individual and multi-residue)
Amino Acids
Biogenic Amines
Paralytic Shellfish Toxin
Polyether Antibiotics
Hexavalent Chromium
Vitamins
Sugars
Nitrate/Nitrite
Bromate
Carbamate Pesticides
Glyphosate Herbicide
NDELA
Formaldehyde

Sample Preparation (clean-up) Instruments:

FREESTYLE for SPE, GPC, online-concentration
FREESTYLE ThermELUTE for Aflatoxin analysis (direct inject onto HPLC)
AcceCLEAN for SPE (incl. Immunoaffinity columns)
EluVAC vacuum manifold for SPE (incl. Immunoaffinity columns)
GPC QUATTRO for manual GPC Cleanup
DECS System for the cleanup of samples for Dioxin analysis

Chemistry Products:

Artificial Perspiration
Artificial Saliva
High Purity Water

Stand-Alone OEM Syringe Pump:

For any applications requiring an inert flow path, volumes up to 70mL, and pressures up to 500psi

For More Information visit:

www.pickeringlabs.com

or email: sales@pickeringlabs.com