| 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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Visit SPEX CertiPrep at a trade show near you!
Come say hello to us at the 71st Annual ACIL Meeting, October 11-14, 2008 at the Hyatt Regency Albuquerque, in Albuquerque, NM. The ACIL is a trade association representing independent, commercial scientific and engineering firms that are engaged in testing, product certification, consulting, and R&D. Stop by our booth and say hello to George, who will be happy to discuss our custom standards and all of your CRM needs with you.
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Due to Hurricane Ike, the 104th Gulf Coast Conference has been postponed until January 20-21, 2009. It will still be held at the Moody Gardens Convention Center in Galveston, TX. The Gulf Coast Conference is the premier event for the petrochemical, refining, environmental, and industrial hygiene industries. We will feature our custom organic and organometallic oil standards.
We look forward to meeting you there!
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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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