S4 T STAR ultra trace element analysis

Rapid and Cost-efficient Monitoring of Water, Wastewater and Environmental Samples

Without the need for any gases, media or a sophisticated lab infractructure with hoods and exhausts, the S4 T-STAR can be easily installed at any production site where wastewaters have to be monitored. Wastewater monitoring requires the rapid analysis of many trace metals to prevent pollution of the environment. Ideally a wide range of elements (e.g. Ti, Cr, V, Co, Ni, Cu, Zn, As, Mo, Ag, Cd, Sn, Sb, Pb) can be quantified within 30 minutes after sampling including sample preparation with an internal standard, homogenization, transfer to a sample carrier, drying and measurements with different excitations.

In the example given here the S4 T-STAR finishes the complete analysis of the required elements Ti, Cr, V, Co, Ni, Cu, Zn, As and Pb within 17 minutes. For highest sensitivity, an automatic tube adjustment control procedure can be carried out after changing the excitation followed by a longer measurement of 15 min. In that case, the complete analytical procedure is finished within 42 minutes.

The detection limits for elements measured with Mo excitation are typically below 15 ppb (for a measurement time 100 s). With longer measurement times, the detection limits can be improved down to <5 ppb. Measurements with W excitation achieve detection limits below 200 ppb (for a measurement time 600 s).