The Mercury Analyzer in Your Bid: 1) Must fully comply with EPA Methods 245.1 including all sample preparation and analysis requirements. Must fully comply with SW846 method 7471A analysis requirements. 2) Must provide complete sample processing including hot-block sample digestion followed by cold vapor atomic absorption spectroscopy (CVAAS) analysis without any user intervention (i.e. transfer of sample or sample tubes from one unit to another). This means that after starting the instrument, the samples will undergo the appropriate sample pretreatment followed by mercury analysis without any interruption. 3) Must include a complete enclosure with a built-in exhaust fan to ensure that no acid fumes escape into the laboratory environment. 4) Must include a color sensor that allows for automated verification of appropriate oxidant volumes in each sample, according to the EPA Method requirements. The system must be capable of adding additional oxidant automatically to any sample that fails the initial color check. 5) Must require only 5 ml of sample per analysis. 6) Must consume less than 300µl of analytical reductant per sample. 7) Must not use any compressed gases for operation. 8) Must have a Method Detection Limit (MDL) at or below 5 ppt Hg (parts per trillion). 9) Must have an upper quantitation limit of 100 ppb Hg (parts per billion).
