x Water/Wastewater New Spectrophotometer to Revolutionise Water Analysis
Hach Lange (UK) announces the launch of a major new spectrophotometer, the DR 3900. The DR 3900 employs the latest RFID (Radio Frequency Identification) technology to ensure that an accurate, reliable, traceable record is created for every sample. However, as Sarah Blayds explains: "Improved traceability is not the only benefit of the technology; users are now able to define their own ’set points’ for specific sampling locations, so that any results falling outside of these points will be flagged immediately. This facility will be of great benefit to staff such as application scientists who may wish to be alerted to specific conditions such as deviation from normal C:N:P ratios."
In order to establish a fully traceable system, users will undertake the following procedure: 1. Place RFID tags in monitoring locations, 2. Provide sampling staff with personal RFID keyring fobs, 3. Utilise a portable, pocket-sized RFID Locator to assign location and sampler ID data to the sample bottle RFID label and 4. Utilise cuvettes with new 2D Barcode
The DR3900 will then read sample RFIDs and assign traceability data to the analytical result – date, time, sampler, location and test method. The DR3900 will also read the sample barcode to determine the batch number and expiry date, and this data will also be assigned to the analytical result.
Small changes are sometimes made to analytical methods and these represent an opportunity for test errors to occur. However, the introduction of the advanced Barcode 2 and RFID can prevent such errors because the DR3900 will issue a warning if a test requires an update. By simply holding the cuvette box RFID label in front of the DR3900, the user is then able to update the test methodology in the spectrophotometer. The new barcodes also contribute to accuracy by alerting the user if reagents have expired. A further benefit of the DR3900 is made possible when the device is networked via Ethernet to facilitate the automatic calibration of Hach Lange online process monitoring instruments.
Reader Reply Card No. 190
No Purge Snap Sampler
Van Walt (UK ) launches the Snap Sampler, a novel groundwater sampling device. The Snap Sampler, the latest piece of equipment to be added, is unique in the UK. A passive sampler that collects your sample down in a well, in sealed bottles, which are then retrieved and sent directly to a laboratory for analysis. The sample is never exposed to the open air and collection of the sample does not require pumps, controllers, meters and purge water waste containers. It is simpler, safer and more cost effective to collect the samples and data quality is improved.
“Low volume purging, no purge or passive and diffusion sampling is relatively new to the UK,” said Vincent van Walt, Director. “But in the US low flow or micro purging is now an accepted method of sampling* and is becoming more popular in Europe. Passive or Diffusion Sampling was introduced in 2000 but has gained popularity in the States since 2006 and it’s easy to see why. It is easier and quicker to take samples; fewer pieces of equipment are required and there is no purge water to dispose of; variations in site conditions and the personnel taking the samples will not affect the quality of the results so there is improved data quality and field repeatability. In short using a Snap Sampler can save time, money and generate more accurate results.”
“The fact that the Snap Sampler has recently been awarded the National Groundwater Association Equipment Design Award only goes to underline our delight at becoming the UK & Ireland distributor,” concluded Vincent.
Reader Reply Card No. 191
Online COD analysis PeCOD™technology measures COD online to control your process or meet your consent.
Genuine COD results within 20 minutes without hazardous chemicals.
Camlab Now Offers Automated Water Analysis Solution for BOD by Day and Titration by Night
Automate your analysis Analyse pH, conductivity, turbidity, color, alkalinity and many more
Software driven with proven technology these rugged instrument can analyse hundreds of samples in a day or overnight
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Call Camlab now for more information on 01954 233100
Tel.: 01954 233100 Fax: 01954 233101
www.camlab.co.uk
Reader Reply Card No. 192 Choice, Service and Trust
Camlab, one of the UK's leading scientific suppliers and service/repair agents, has been appointed by Man-Tech Associates to represent and support the company’s range of automated water quality analysers in the UK. The PC-BOD™ system, which is designed to automate the 5- and 7-day BOD analysis method, simplifies the complex BOD measurement procedure required by many discharge consents to analyse the quality of wastewater.
The system is designed to automate dilution water, seed and inhibitor addition as well as rinsing procedures, critically the system simplifies the whole measurement process for BOD5.
Featuring a durable autosampler, the PC-BOD™ system provides a range of rack configurations to suit the users sample requirements all designed around the standard 300ml BOD bottle. The rinse pump, liquid level sensor control and BOD probe stirrer control are built in to a compact module. The pumps are designed to deliver accurate volumes at a speed which ensures sample trays can be completed in reasonable time-scales, a liquid level sensor ensures that no samples are overloaded. The PC-BOD™ oxygen measurement is delivered by a standard BOD probe allowing for easy replacement when required.
The PC-BOD™ enables laboratories to conform to regulatory Norms such as Standard Methods 5210B, 21st edition; Standard Methods 5210B, 20th edition; and DIN EN 1899-1.
Camlab can also configure a number of variants of the PC-BOD™ technology to address differing laboratory operating requirements. The cost-effective PC-BOD™ Mini system, an 11 bottle capacity solution, is ideal for laboratories needing to prepare and analyse samples for BOD5 at a rate of five to 50 samples a day, for three, five or seven days per week. The key element of all of the PC-BOD™ systems is the software used for the BOD calculation, the Man- tech BOD software offers a significant improvement on the built in calculation in many commercial dissolved oxygen meters. The software and autosampler setup are seamlessly linked in one package on the control PC. Offering a simple upgrade path, Man-Tech’s PC-BOD/Titrate Duo™ enables laboratories to prepare and analyse samples for BOD5 then, with the simple change of a rack and probe holder, analyse different samples for pH, conductivity, alkalinity, turbidity and more. The system allows organisations to carry out BOD sampling and titration with a single integrated system. The PC-BOD/Titrate Duo is best suited for environmental laboratories with smaller to medium sized throughput. The duo system can be purchased as an upgrade to an existing PC-BOD™ or PC-Titrate™ system, ensuring upgrade flexibility whatever the initial purchase.
Reader Reply Card No. 193
IET May / June 2011
www.envirotech-online.com
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