PFP-7 Flame Photometer
PFP-7 Industrial Flame Photometer
- Designed for industrial analysis
- Supplied with Na, K, Li, Ba and Ca filters
- Low temperature, single channel
- Flame failure safety system
- Operates with propane, butane, natural gas or LPG
The PFP7 is a low temperature, single channel flame photometer that is designed for the routine determination of sodium, potassium, calcium, barium and lithium concentrations. The flame failure safety system makes these products ideal for use in industrial and educational environments. The use of fine and coarse sensitivity controls allows for accurate measurements each and every time.
|Range:||0 to 199.9ppm|
|Limits of detection Na:||0.2ppm|
|Reproducibility:||<1% coefficient of variation for 20 consecutive samples using 10ppm Na set to read 50|
|Linearity:||< 2% error when 3ppm Na/K and 5ppm Li are set to read 100|
|Stability:||< 2% drift over 5min when continuously aspirating 10ppm sample set to 50.0. Specificity Interference from Na/K and Li equal in concentration to test element will be <0.5%|
|Recorder output:||Nominal 1.00V for a reading of 100.0|
|Electrical supply:||90-125V or 190-250V @50/60Hz|
|Air supply:||Moisture and oil free, 6 litre/min @ 14psi|
|Fuel:||Propane, butane, natural gas or LPG|
|Size (w x d x h):||420 x 360 x 300mm|
|Description:||PFP7 industrial flame photometer supplied with Na, K, Ba, Ca and Li filters, connecting hoses and clips, compressor plug and drain trap (230V/50Hz)|
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Questions & AnswersAsk a Question
Which are sources of errors in mineral.determination by flame photometer?
I don't know, this looks like a test question from a chem 201 course. But I will answer it anyway:)
Contamination is the big killer.
You need to rinse the nebuliser (sample intake) between samples to ensure accurate readings.
When we get low readings of sodium, where is the problem?
A quick check of the sensitivity of the PFP-7 is to make up a fresh 10ppm Na standard. Using the 10ppm standard set the sensitivity (coarse and fine) to display 50.0. Using the zero adjust set the display to read 00.0 when running a distilled water blank. Repeat these adjustments until they both are giving the correct readings (there is interaction between the zero and sensitivity controls). The instrument is working properly if the coarse sensitivity adjustment is now on the 2nd position (from the left). If the coarse sensitivity knob is not in the second position:
1. Check that the fuel adjust is adjusted correctly to give a peak reading.
2. Nebulizer may be clogged or malfunctioning.
3. Check air source for contamination and internal air regulator (set to 12 psi).
4. Mixing chamber and/or burner contaminated and requires maintenance.
5. Be sure your distilled water and standard solutions are not contaminated.
Other helpful maintenance and troubleshooting information may be found in the PFP-7 Operator's manual which may be found at https://cdn.shopify.com/s/files/1/1385/8945/files/PFP7_Manual_3.pdf?10999379569181025184