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Model 2500 - CVAFS Mercury Detector 0 pages
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| LEIH ■ ■ 'S ^\ijI ■ ■ rn w | North American Sales and Service 230 Tech Center Drive Knoxville, TN 37912 Phone:1-865-688-0688 Toll Free: 1-888-3TEKRAN http://www.tekran.com sales@tekran.com |
| TEKRRN Instruments Corporation | |
| Model 2500 Fluorescence Mercury Detector | |
| The Tekran® Model 2500 is a Cold Vapor Atomic Fluorescence Spectrophotometer (CVAFS) elemental mercury detector. The advantages of atomic fluorescence over more traditional atomic absorption (AA) techniques are well known. They include: very high sensitivity, superior immunity to false positive responses, and inherent linearity. This high sensitivity, high stability detector is specifically designed to provide precision analysis of all types of mercury samples. It can be used with any method and apparatus capable of generating elemental mercury vapor in an inert gas stream. The Model 2500 is compact, inexpensive, and has a number of features that provide greatly improved performance over other CVAFS and AA detectors. High Stability Excitation Source The excitation source for the detector is a long life, low pressure analytical grade UV lamp. High frequency drive electronics and two stage voltage regulation render lamp output totally impervious to line voltage noise and fluctuations. Thermal stabilization and closed loop control of lamp output ensure constant excitation level. Optical Path Purge The presence of oxygen and ozone precursor species in laboratory air results in the absorption of UV radiation within the optical path of most detectors. The Model 2500 incorporates an enhanced OPPS (Optical Path Purge System) that displaces room air and greatly increases long term detector stability. Low Noise Electronics Low noise, high stability electronic components result in wide dynamic range and increased sensitivity. Carrier Flow Regulation The Model 2500 comes standard with an adjustable ball flowmeter. For applications where more accurate carrier flow control is required, the detector is available with an optional precision mass flow controller, electronic flow rate adjustment and digital flow display. This option allows remote control and setting of carrier flow rates via rear panel connections. | |
| Rev 02/2006 Due to continuing development, all specifications are subject to change. | |
