This hereby amends Solicitation Number SB1341-07-RQ-0188 to modify the specifications as follows:
Specification/Features
A direct mercury analyzer system must possess a built-in autosampler, integrated sample drying, thermal decomposition, amalgamation and spectrophotometry. The autosampler must be programmable, capable of using variably sized sample boats, and able to transport samples in a smooth, fast sample method. The system must have a spares kit that includes: decomposition tubes, amalgamator, sample boats, and mercury trap.
The system must comply with US EPA Method 7473, such that the system must have:
? Wavelength of detection: 254 nm
? Detector: UV photodetector
? Detection limit: 0.01 ng Hg
? Solid sample weight: at least 0.5 g
? Liquid sample volume: up to 1000 uL
? Working range : 0.05 ng to 600 ng
? Reproducibility: less than 1.5 percent
? Analysis time: Approx. 5 minutes per sample
? Sample treatment completely programmable:
? Drying time: between 0 and 300 sec.
? Drying temperature: between 50-400 degrees C
? Decomposition time: between 0 and 420 sec.
? Adjustable decomposition temperature, up to 900 degrees C, with temperature sensor
? Halogen removal system, including additives and liquid scrubber, to reduce the degradation of the catalyst
? Standby amalgamator temperature variable from 150-200 degrees C
? Amalgamator heating temperature up to 800 degrees C
? Adjust release time for amalgamator (0-30 seconds)
? Recording time adjustable (0-60 seconds)
? Calibration to be performed with solid or liquid standard reference materials
? For liquid calibration, can input an infinite amount of measurements for the same data point. Data can be added to existing calibration curve.
? Ceramic boats, holding up to 1000 uL, that optimize conditions for unattended analysis of liquids, clinical and other sensitive samples in a full autosampler rack
Software/Hardware:
? Displays real time graphical representation of the sampling process
? Provides a means for portable data storage, such that the data can be transferred into other spreadsheet/analysis programs, such as Excel.
? Interfaces to an analytical balance and printer
? Upload sample weights, run sample programs, document and export data. Features include calibration, sample concentration, blank subtraction and data manipulation
? User specified data calculation, allows operator to choose data sets for statistical evaluation
? Validate data versus a stored calibration curve and automatically adjust results without recalibrating to improved the accuracy of measured data
? Store multiple calibration curves
? Store up to 150 sample results per data file
? Choose linear, second order, or third order fit for calibration curves
? Provides a statistical validation of the calibration curve
? Easily switches between manual and automatic mode
? Easy data identification. User can specify a file name for all data sets
? Switch from sampling mode to data mode to view graphs
? Software measures peak height or peak area (operator?s choice)
? Conveniently add additional samples to the autosampler while a sample run is in progress
Data
? Printable data report includes the following information in list format:
Sample number, Sample identification, Weight absorbed, Hg concentration (ng), Blank Correlation, Notes, Dry temperature, Dry time, Decomposition temperature, Decomposition time, Wait time, Amalgamator heat time, Recording time
? Print individual sample graphs (measurement peaks with absorbance values)
? Print calibration curves
Support
? On-site installation and training by a factory trained service engineer in our laboratory must be available.
? The system must be manufactured and supported by the company using a dedicated product manager and full applications/service support staff
? A thorough Applications Library and a simple instrument operation manual must be provided with the system
Warranty
? A 24 month warranty including parts and labor must be provided.
The due date for quotes is hereby extended through Friday, June 15, 2007, 3:30:00PM EST.
All other terms and conditions remain the same.
Bid Protests Not Available