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In this September News Edition we are embarking on Fall here in New England, the most beautiful time of the year when the leaves on the trees change colors; revealing brilliant hues of red, orange and yellow. It's marvelous.
Our R&D team is busy organizing new projects for the upcoming PITTCON and AIHCE conferences both with local municipalities and local universities; we're working on several exciting new analytical tecniques; as soon as we get our acceptances we'll give a preview in my upcoming newsletters.
Attention Global Spec subscribers: we're adding Product Announcements and Technical Articles weekly.
Our post-sales service and support contact information is listed at the end of this email. Make sure to email me to receive a discount on the service of your 101 or 102 PID.
We are currently signing Domestic and Foreign Distributors. We are seeking manufacturers reps for our portable & continuous analyzer product line in the following areas: USA 1. S. NJ area & E. Pennsylvania area 2. Chicago area 3. Carolinas INTERNATIONAL 1. Thailand 2. Japan. The products include continuous VOC analyzers, process gas chromatographs, oxygen analyzers (low ppm to 100%), hydrogen analyzers. Contact Dr. Jack Driscoll at sales@hnu.com with credentials. We will continue to notify you by email as we sign add new Distributors and Representatives to our team that handle your area.
We've begun our foray into social media networking: "PID Analyzers for air, water and process monitoring" is on Facebook.
If you are on Facebook, please become a fan. |
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The Portable GC
For IH, Environmental , Process & Stack
Monitoring, Building security
PID Analyzers offers a new lightweight
portable GC for environmental, quality
control, natural gas... applications. The
GC is extremely easy to use with its on-board pc. It has significant data storage capability in a 2 GByte smartcard, & a choice one
of our excellent GC detectors. The 312 will go anywhere with its light weight & rechargeable battery. The GC is powered by a Pentium PC with Windows XP
(embedded) operating system and PeakWorks chromatography software. This new gas chromatograph is the Model 312.
Email jen@pid.bz for a quote.
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DETERMINATION OF ARSENIC IN WATER AT LOW PPB LEVELS
AUTHORS
J.N. Driscoll, PID Analyzers, 25 Walpole Park S dr., Walpole, MA 02081
D. Lewis, R. Kipp, Celeo Guifarro, Julie Ann, Heidi Hu, Steve Strezsak, Chemistry Dept., Suffolk University, 41 Temple St., Boston, MA 02114
The National Academy of Sciences concluded in 1999 that the current standard for As in drinking water (50 ppb) was inadequate and should be revised to a lower value. EPA set the new standard (66FR6976) for arsenic in drinking water at 10 ppb on Jan., 22, 2001. The rule became effective on February 22, 2002. The date by which systems must comply with the new 10 ppb standard is January 23, 2006.
The new standard will apply to all 54,000 community water systems, the majority of which are small. The concerns that EPA has include balancing the cost of compliance (treatment, instrumentation, maintenance) against the health effects achieved. Of particular concern is the cost for those systems serving 10,000 or fewer people. Here, this regulation for As may result in an increase of 50-100% in the water bill. For large water systems, the cost is minimal.
One significant item in the cost is the instrumentation required. The analytical instrumentation suggested by EPA includes: ICP-MS, ACP-AES, Gaseous hydride-AAS, Graphite furnace-AAS, and annodic stripping voltametry (ASV). Not only is this instrumentation costly but the skill level of the people required to work with this equipment is extremely high.
We have developed two simpler automated methods for the analysis of low or sub ppb levels of arsenic in drinking water that employs the gaseous hydride method to reduce the arsenic to AsH3 that is detected via a photoionization or electrochemical (As) detector. Both of these methods are very simple and easy to use.
The equipment for arsenic determination includes:
A hydride generator that contains a reducing agent
A carrier gas such as perpurified nitrogen with an in-line flow controller
A photoionization detector with a 10.6 eV lamp or an electrochemical detector for arsenic
A smart meter that integrates the signal and displays the results on a 2 line x 16 character LCD display
This technique is easy to use and considerably less costly than the spectroscopic or ASV techniques above. The precision, accuracy and range of the photoionization and electrochemistry methods will be evaluated and compared to the spectroscopic methods. This method is faster and considerably less complex than the present methods for arsenic in water analysis.
Interested in learning more, email Dr. Jack Driscoll at sales@hnu.com |
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Post Sales Service & Support
PID Analyzers, LLC, provides service as well as customer support for hnu, hnu systems, Process Analyzers and PID Analyzers' instruments. If you have service questions, need to calibrate your PIDs, GCs, or get annual maintenance and service contracts or if you've just inherited an HNU you may contact Christine via E-mail christine@hnu.com or via telephone 781-709-2131 x202. USA & Canada call 800-724-5600 X202.
I thank you for taking the time to give us feedback.
We're trying to track down our users. If you've got an old HNU, we've got a TRADE-IN program for you! Email me to take advantage of these awesome offers.
We're still honoring the monthly postcard mailings from last year; so if it's time to service and you've got one my cute postcards handy, tell Christine when you call in/email in your Return Authorizations.
Let us know who you are so we can send you email coupons for service and monthly discounts on consummable parts. Email me today jen@pid.bz
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I thank you for taking the time to read my E-Newlsetter today and hope that I provided some useful information. Please be sure to click "Confirm" at the top of this Email if you would like to continue receiving my Monthly E-Newsletter.
If you have any questions, comments or customer service related issues you can contact me via email mailto:jen@pid.bz or via telephone at 781-709-2131 or toll free at 800-724-5600.
I look forward to hearing from you.
Sincerely, |
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Jennifer Maclachlan, Manager PID Analyzers, LLC
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