Lead analysis in your laboratory reduces turn-around time, cuts costs and generates revenue while providing a needed service for your community. Using proven Anodic Stripping Voltammetry (ASV) and 30 years of experience, ESA makes blood lead analysis rapid and routine, without the high costs of other analytical methods. The system incorporates trace metal-free pre-packaged reagents and unique instrumentation.
The Instrument
The ESA Model 3010B Lead Analyzer consists of two components—sensing and electronics. The sensing unit includes a test electrode, a stirring assembly and two electrodes that carry current and regulate potential. This process is the heart of the ASV system. The electronics unit controls the analysis cycle, sorts the electronic signals and calculates the results.
Model 3010B Features
- Rapid Analysis— only 90 second/sample
- No Special Laboratory Setup—unlike AA and ICP/MS, no hoods, gases or flames are required
- Small Footprint
- Low Reagent Costs— only prepackaged reagents needed
- Highly skilled operators not required
- Reimbursable as a quantitative blood lead
The Reagents
Metexchange® kits include chemical pretreatment reagents, calibrators, controls and performance verification mixtures. The unique Metexchange pretreatment reagent eliminates the necessity of performing acid digestion. Reagents come premeasured in easy to use snap cap vials. All reagents are manufactured and available from one source — ESA
Proven ASV Method for Accurate Results
Anodic Stripping Voltammetry is a highly precise, virtually interference-free method. Whole blood is added to the reagent (Fig. 1), where the lead is freed (Fig. 2). Lead in the sample is concentrated on a thin-film mercury/graphite electrode during the plating step of the analysis cycle (Fig. 3). The plated lead is removed from the electrode by the stripping step (Fig. 4) and measured by the integration of the current peak resulting from its rapid electrochemical reaction. The peak area, obtained in the stripping step, is a measure of the amount of lead present.
Method Correlation
Results from the Model 3010B Lead Analyzer have shown close correlation with the widely accepted graphite furnace methodologies. This is further supported by results from numerous proficiency surveys. The Model 3010B provides the sensitivity you need for the detection of blood lead in childhood lead screening, industrial hygiene and occupational health monitoring programs.
Accessories
In addition to the system, a strip chart recorder is highly recommended. A printer interface is also available.
