Laboratory Products Focus
The 10 ppb QC check was used to check for recovery and drift during the run and it was found to be exceptionally stable as Chart 1 demonstrates. For all elements, with the exception of one mercury QC, the QC recovery was within 5% of the expected value over the four-hour analysis period. As the limits were set to +/- 10% failure, with a warning flag at +/- 5%, all of the QCs passed and did not require further actions within the run.
Chart 1. Stability of 10 ppb QC Check over 4 hours
Conclusion
Advanced ICP-OES technology combines pre-loaded analysis-ready hardware parameters and an environmental software method template to achieve efficient, rapid and analyst friendly detection of toxic elements in tap and bottled drinking water. The technique allows novice and experienced analysts to generate excellent results with minimum investment of time while also enabling a highly cost-efficient sample analysis regime. Regulatory compliance is easily achieved without the need for method development.
References
[1]. Maxim News Network, Global Water Consumption on the Rise, by Kathy Shandling,
http://www.maxims
news.com/
news20080926bottledwatershandling10809260801.htm
[2]. Global Water News, Asian Middle Classes’ Thirst for Bottled Water Will Pull Trigger on an Eastern Blue Gold Rush,
http://globalwaternews.com/?p=330
[3]. COUNCIL DIRECTIVE 98/83/EC of 3 November 1998 on the quality of water intended for human consumption,
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:1998:330:0032:0054:EN:PDF
[4]. DIRECTIVE 2009/54/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 18 June 2009 on the exploitation and marketing of natural mineral waters,
http://www.fsai.ie/uploadedFiles/Legislation/Food_Legisation_Links/Water/Dir2009_54.pdf
[5]. COMMISSION DIRECTIVE 2003/40/EC of 16 May 2003 establishing the list, concentration limits and labeling requirements for the constituents of natural mineral waters and the conditions for using ozone-enriched air for the treatment of natural mineral waters and spring waters,
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2003:126:0034:0039:EN:PDF
Rapid Diagnosis of Pathogenic Legionella Species
Oxoid has launched Xpect™ Legionella, a rapid immunochromatographic test for the direct detection of Legionella pneumophila serogroups 1 and 6 antigen in human urine samples.
Pneumonia caused by Legionella pneumophila (Legionnaires’ Disease) was first recognised in 1977 after an outbreak among attendees at the 1976 American Legion convention. Since then infection by Legionella spp. has been found to be an important cause of community-acquired and nosocomial pneumonia. The number of cases of Legionnaires’ Disease reported by the European Working Group for Legionella Infections has increased in recent years. In 2007, 946 cases were reported, compared to 360 in 2000. In the UK, figures have more than doubled with 236 cases reported in 2007, compared to 107 in 2000.
Due to the epidemic potential and high case fatality rate of Legionnaires’ Disease, surveillance is important to detect, control and prevent further outbreaks. The use of Xpect Legionella allows early diagnosis and rapid initiation of antibiotic therapy. Xpect Legionella demonstrates excellent sensitivity and specificity, can be stored at room temperature, and is easy to use and interpret. A positive test is indicated by two black lines; one in the Test region and one in the Control region. A negative test is indicated by only one black line in the Control region.
Circle no. 88
Launch of New CO2 Incubators Esco announced the launch of its new range of CelCulture®
CO2 Incubators – world-class CO2 incubators
with the technologies and compliance to prove it. Key features include: precise parameter control; robust contamination control with ULPA filtration system and 90°C moist heat decon cycle; direct heat and air jacket design with 8 heaters grouped into 3 zones; gentle yet effective forced convection; intuitive interfaces; and intelligent data and event logger with 16MB built-in flash memory, all supported by Esco's solutions and sales and service representatives based worldwide.
CelCulture®
incubators offers VivoCell™ precise temperature, CO2 control and high humidity; CelSafe™ contamination control system for proactive and reactive protection; user-friendly software interface; and
an easy to clean and service design. "The launch of our CO2 incubator line marks a major milestone in Esco's development as a controlled environment laboratory equipment solutions provider," said XQ Lin, Esco Vice President. "Being a world leader in biological safety cabinets, we expect to be able to package our safety cabinets and incubators to offer a total cell culture solution."
Circle no. 89
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