Table 2 Operating parameters of LED Fluorimeter

Power

8 Watts and operates on 12 V DC

Excitation Source

LEDs (light-emitting diodes), 405 nm

Detector

Photomultiplier tube

Analyte volume

Minimum 6 mL

Cuvette

External Size − 12.5 mm × 22.5 mm × 45 mm made from Ultra low fluorescence Fused Silica

Minimum Concentration

0.1 µg uranium per liter

Dynamic range

0.1–1000 ppb

Accuracy

10% or 0.05 ppb whichever is larger

Reproducibility

Better than 5% under identical conditions at the time of measurement

Mode of operation

Uncalibrated Fluorescence Mode and instrument averages the fluorescence for 256 pulses and displays the average about 1 s for average of 256 pulses taken five times