| Ask a Chemist |
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Question: We have a calibration standard containing Acrolein and have observed the response going down quickly (within two weeks) for this compound, can you explain this?
Acrolein can dimerize or break down to form 3-methoxypropanol and dimethyl acetal depending on factors such as storage condition, other compounds is in the solution, the solution matrix itself and of course time. On a typical GC capillary column CV-502.2 for example, the breakdown peaks will show up shortly after the Acrolein. If you have access to a GC/MS you can easily identify Acrolein, major ion 56 and distinct minor ion of 55. The breakdown product 3-methoxypropanol has the major ion of 60 and 45. The breakdown product dimethyl acetal has the major ion of 71 with minor ions of 75 and 41. Acrolein is more stable using methanol for the matrix. We recommend fresh working calibration standards weekly. Our Acrolein at 1000ug/mL in P+T Methanol (Item #: S-175) is made fresh every 90 days to ensure our customers get the highest level standard.
If you have a question for our chemists, just ask!!! |
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| News from SPEX CertiPrep Organics |
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Thank you to everyone who attended our "Clean Lab Techniques" webinar
SPEX CertiPrep's "Clean Lab Techniques" webinar was a huge success! We would like to thank everyone that attended. If you were unable to attend the webinar the presentation slides and recording are now available!
View the recording and presentation slides at your leisure!!
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A2LA Accreditation for Inorganic and Organic CRMs
SPEX CertiPrep, Inc. is proud to be accredited by A2LA for both Organic and Inorganic Certified Reference Materials (CRM). Now in addition to being registered as an ISO 9001:2000 facility, SPEX CertiPrep is accredited by A2LA as complying with the requirements of ISO/IEC 17025:2005 and ISO/IEC Guide 34-2000. The scope of our accreditation is the most comprehensive in the industry and encompasses all of the products SPEX CertiPrep manufactures. This new milestone establishes our continuing dedication to our customers for providing the highest quality standards. As always, SPEX CertiPrep wants to ensure Total Customer Satisfaction that’s why our motto has always been Superior Quality and Unparalleled Service. |
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New White Paper!
The Analysis of Laboratory and Consumer Water Sources for the Presence of BPA and Phthalates
SPEX CertiPrep has just released a new white paper on the presence of bisphenol-A (BPA) and phthalates in water from various laboratory and consumer sources.
The goal of the study was to examine the BPA and phthalate levels of several popular commercial bottled waters in comparison with municipal tap water and various samples of laboratory water from commercial sources and from de-ionized filtration systems. In addition, the study attempted to discover whether the phthalate and BPA levels increased after being heated for one week at temperatures equivalent to those reached inside an automobile during the summer.
You can read the abstract and view the presentation slides. To receive a copy of the full paper, please email crmsales@spexcsp.com or give us a call at 1-800-LAB-SPEX.
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Recommended reading: Green Chemistry
Here are two books you can use to learn how to decrease your lab's environmental footprint:
Methods and Reagents for Green Chemistry: An Introduction by Pietro Tundo (Editor), Alvise Perosa, and Fulvio Zecchini is "…a good starting resource for readers seeking to employ sustainable chemistry." (Journal of the American Chemical Society, January 9, 2008).
Green Chemistry Metrics by Alexei Lapkin (Editor) and David Constable (Editor). When devising green chemistry techniques, you need a way to evaluate their "greenness". This book will show you how.
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Take our SPEX CertiPrep IQ product survey and you could win an iPod!
We are getting ready to launch our new service, SPEX CertiPrep IQ Custom Standards Kits, and we need your input! As recommended by Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP), labs with analytical instruments should follow OQ/PV procedures to ensure their instruments are running in peak condition. Our OQ/PV Custom Standards Kits will be designed to provide your laboratory with a year supply of OQ/PV standards tailored specifically to your needs. We can manufacture the solutions in our ISO 9001-certified facility or you can send us your pre-made bulk solution. Either way, we will package the standards into single use sizes so you can be assured each individual standard will be homogeneous, free of contaminations, and consistent across the packaging run. Let us take the worry out of preparing standards!
Please take a few moments to complete our survey and let us know how to make these products better. Each submission will be entered into a drawing for a free iPod! Take the survey now…
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Green Chemistry
The EPA's Green Chemistry Challenge promotes the "design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances." There is only one Earth, and SPEX CertiPrep has embarked on an initiative to minimize our impact on the environment. We will investigate manufacturing techniques that are more environmentally friendly, find ways to minimize chemical waste, and reduce the paper waste generated by our offices. As we learn, we will be offering tips to you, the laboratories, to allow you to start your own green initiatives.
Stay tuned for more detailed information on our efforts!
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Loyal Customer Discount Program
SPEX CertiPrep values its customers. We know that without our loyal customers we would not be the leading manufacturer of Certified Reference Materials. By purchasing your inorganic and organic certified reference materials from SPEX CertiPrep you can be part of a program that gives you automatic discount off of all our manufactured products. SPEX CertiPrep is excited to offer this Program to all Protocol Customers who qualify.
Learn more about the Loyal Customer Program . |
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| BPA Webinar Archive |
To download a video of our recent BPA and Phthalates webinar, right-click the link below and select "Save As" or "Save Target" (depending on your browser)
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| BPA and Phthalate Standards |
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Check out our complete line of BPA and Phthalate Standards.
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| Tell Us |
We value your opinion. Complete our Total Customer Satisfaction Survey (TCS) to provide feedback on your purchasing experience with SPEX CertiPrep.
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| Can't Find It? |
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Can't find what you are looking for? Complete the Custom Standard Request Form!
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| Promotions |
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Each month discover new and rewarding promotions on some of our most popular products. No registration is necessary and orders can be placed online!
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| SPEXertificate |
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The most comprehensive certificate available for your Certified Reference Materials is now available online. Search by Part Number and Lot Number for a quick, printable copy of your SPEXertificate.
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| MSDS |
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Save time by printing your MSDS directly from our website. Search our database by product, part number or element.
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| SPoints Rewards |
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It doesn’t get any easier than this! Earn reward points or, "SPoints" on every order you place. Redeem them for great prizes throughout the year!
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