| Ask a Chemist |
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Question: Why is it recommended to add acid when diluting reference standards?
Answer from our Spectroscopist: Addition of acid is recommended to prevent the formation of hydroxides. Hydroxides have a tendency to absorb on the surface of storage containers, autosampler tubes and all parts of the sample introduction system. Hence nebulized aerosol droplets will not be a true representation of the standard itself and will lead to lower intensity which will cause erroneous results. This is true for sample as well standard and one need to match the amount of acid in both the sample and the standard.
If you have a question for our chemists, please ask! |
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| News from SPEX CertiPrep Inorganics |
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Join SPEX CertiPrep for our FREE webinar, "What's in Your Kitchen?"
Most people do not realize that even at low concentrations heavy metals can be toxic. The most common heavy metals include Cadmium, Lead, and Mercury.
SPEX CertiPrep analyzed several types of food to find out if they contained harmful amounts of heavy metals. Specifically, we tested gourmet salts, chocolate, and fish.
We will be hosting a webinar on June 24 to present our findings and answer your questions about what is really in your food. For your convenience, you can attend our 2pm(EST) session.
You can view the presentation slides now, and a recording will be posted shortly.
Space is limited, so don't delay!
Click here to register today.
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New ILM 0.5.2 and ILM 0.5.3 Standards!
SPEX CertiPrep is pleased to introduce a series of brand new calibration standards for ILM 0.5.2 and ILM 0.5.3. CL-TUNE-4 is a tuning and mass calibration standard for ICP-MS. ICAL-4 and ICAL-5 are instrument calibration standards for ICP-OES that can be used separately or combined with other appropriate SPEX CertiPrep ICAL standards. We are also offering a new ICP-OES instrument calibration and verification kit, ICV-3, comprised of ICV-3 and PLSB7-2X.
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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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Parctical Guide to ICP-MS: A Tutirial for Beginners, Second Edition
By: Robert Thomas
Are you new to the wonderful world of ICP-MS analysis? Are you considering making the jump to an ICP-MS? If so, then you should read Practical Guide to ICP-MS: A Tutorial for Beginners, Second Edition by Robert Thomas. This newly revised second edition is perfect for the beginner, and includes updated information on the latest techniques and applications in many industries. |
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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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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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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. Learn more about the Loyal Customer Program. |
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ICP, ICP/ICP-MS, and ICP-MS Grade Certified Reference Materials Is There Really a Difference?
A blind laboratory study was conducted to compare standards obtained from various manufacturers of certified reference materials. There are two goals for this study: First to objectively determine if a difference exists between an ICP grade standard and an ICP-MS grade standard and second to focus on the equivalency of the ICP-MS grade standard to the ICP/ICP-MS grade of standard. Read the Study. |
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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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| 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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| SPEXertificate |
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Are you Impurities Vulnerable (IV)? We list impurities on all of our certificates. Does your supplier do that? SPEXertificates are 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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