EW-28750-28 光度计-产品快照
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 微信咨询，as10@gchane.com , QQ3350168184
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产品介绍
EW-28750-28 光度计
Buck Scientific 410 Cold Vapor Mercury Analyzer; 230 VAC/50 Hz
Ideal for EPA method 245.1! Unique automatic D2 background correction maximizes accuracy Detection limits down to 10 parts per trillion (ppt) Sensitive, economical instrument for environmental testing Requires Carrier gas of Argon, Nitrogen, or Lab Grade "Zero" Air at 30 LPM, 50 psi (sold separately) — may use applicable gas canisters, generators, or compressors This dedicated analyzer enables precise mercury analysis for a variety of applications. Analyze trace Hg levels in water samples and related eco-system impacts. Established water methods based on Hatch and Ott Cold Vapor Technique — including drinking, surface, saline, and domestic and industrial waste water testing. The mercury analyzer combines several high-performing instruments to achieve superb detection limits with minimal interferences in a user-friendly platform. Following sample preparation, reduced Hg° vapor is sparged into a long-path 400mm absorption flowcell. User-adjustable parameters include gas flows, lamp currents, and integration times. Absorbance is measured as a function of time and automatically integrated using on-board software. Use up to eight calibration points for mercury quantification. Background correction is accomplished by acquiring rapidly alternating deuterium light absorbances interspersed with 253.7nm hollow cathode lamp readings. The resultant D 2 baseline of non-Hg signals from organic vapors and other interferences is precisely subtracted out to maximize mercury reading accuracy. Calibration and sample data are displayed on a backlit LCD, with outputs to printer via parallel port, to recorder, and to computer using RS-232. Push the Quick-Purge button to flush residual Hg vapor to an internal trap and ready analyzer for next sample. The 410 Mercury Analyzer should be maintained at temperatures from 10 to 32°C (50 - 90°F), and relative humidity of 30% to 80%. What's Included: nylon gas line for Carrier Gas (nitrogen, air, or argon), bubbler assembly, 250 mL Erlenmeyer reaction flask, drying tube with carbon trap, mercury hallow cathode lampm, and spare septum and tubing.
Specifications Product Type Mercury Analyzer Sensitivity Detection Limit: 10 ppt Output RS-232, analog, and parallel printer port Pathlength 400 mm, silica windows Min sample size (mL) 100 Model 410 Qty/ea 1 Source lamp Hollow Cathode (source) and in-line Deuterium (background correction) Description Cold Vapor/Hydride Method for Mercury Detection in Water Dimensions (in.) 37" W x 12" D x 12" H Minimum Rear Clearance: 4" Dimensions (cm) 94 cm W x 28 cm D x 28 cm H Operating power consumption (watts) 80 Brand Buck Scientific
Material Testing & Physical Testing Spectroscopy and Spectrophotometers Specialty spectrophotometers Cold Vapor Mercury Analyzer
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