Plamenski fotometer FP8700

Plamenski fotometer FP8700

The A.KRÜSS flame photometers (AES) determine the concentration of alkali and alkaline-earth elements in aqueous solutions. They are a simple and cost-effective alternative to ICP or AAS. They suit quantitative determination of sodium (Na), potassium (K), lithium (Li) and calcium (Ca), measured simultaneously in one step. Operating costs are about 1 cent per measurement and up to 120 measurements per hour are possible; the modular design allows expansion with retrofit kits. FP8000 series: detection limit for Na, K, Li and Ca of 0.01 mg/l, accuracy up to 1 % at 40 ppm.

Technical data

Model

FP8700

Measuring range

Na 0.1–45000 ppm / 0.004–2000 mmol/l; K 0.1–45000 ppm / 0.003–1100 mmol/l; Li 0.1–45000 ppm / 0.014–6000 mmol/l; Ca 5.0–45000 ppm / 0.125–1100 mmol/l

Detection limit

Na, K, Li 0.1 ppm; Ca 0.3 ppm

Precision

0.6 % pri 40 ppm

Accuracy

1 % pri 40 ppm

Calibration

linear with 2 standards; non-linear with 6–8 standards (polynomial curve fit)

Drift

1 % in 60 min

Sample volume

microlitre range (depending on dilution ratio and sample tube)

Combustion gas

Propane (recommended for alkali elements), butane (possible substitute), acetylene for flame photometry (recommended for alkaline-earth elements)

Display

8.4″ TFT touchscreen, 800 × 600 pixels

Interfaces

2× USB, 1× Ethernet, 1× RS-232 (printer)

Retrofittability

retrofit kits available for other models