-Compass 4294 Energy dispersive Fluorescence spectrometer for the analysis of heavy metal content in lubricating oil application report
An introduction to theLubricating oil is used in all types of vehicles, mechanical equipment to reduce friction, protection machinery and mechanical parts of liquid or solid lubricant, mainly for lubrication, auxiliary cooling, antirust, clean, sealed and buffer, and so on. As long as it is applied to two relative motion between objects, and can reduce the two objects due to the contact friction and wear of function, is the lubricating oil.
Metal elements in the lubricating oil is mainly composed of adding elements, wear metal and pollutants. By measuring the concentration of add elements in the use of before and after the change, to determine whether the lubricating oil is suitable for the engine by measuring the wear of metal and the concentration of the pollutants to determine whether the engine wear and lubricating oil still can use.
-Compass 4294 Energy dispersive Fluorescence spectrometer for the analysis of heavy metal content in lubricating oil application report
The Compass application report 4294 – a high-performance portable desktop energy dispersive X ray fluorescence spectrometer – fully capable of analysis from PPM level to the percentage of heavy metal content in oil. This application demonstrates use Compass analysis of lubricant in 4294Wear metal.
Compass 4294 widely used in the analysis of lubricating oil in metal, meet the following criteria:
ASTMD7751/ASTM D6481–
Add elements in lubricating oil (Mg, P, S, Cl, Ca, zinc, Mo) measurement
ASTM D5059
Lead in gasoline (PB)
0.010 sa 5.0 grams of lead/us gallon
0.012 – 6.0 g Pb/UK gal
0.0026 sa 1.32 grams of lead/l
The instrument parameters
| Numero ng modelo | Pipe pressure | Pipe flow | collimator | Optical filter | vacuum | Oras ng pagsubok |
| Compass 4294 | 40KV | 80uA | 2mm | AI,Mo | no | 100S |
-Compass 4294 Energy dispersive Fluorescence spectrometer for the analysis of heavy metal content in lubricating oil application report
3. test performance
300 PPM of lubricating oil in metal standard samples for testing performance is as follows
4.calibration and testing steps
series of imported oil standard used to calibrate Compass4294 spectrometer.
5.detection lower limit research
By testing it the white sample to obtain the back heat intensity and the slope of the standard curve to obtain the detection limit of the crude oil tested by this method by the sample is shown in the following table.
| Ca 7ppm, Ti 1ppm, V 1.5ppm, Cr 1.5ppm, Mn 2.5ppm, Fe 3ppm, Ni 3ppm, Cu 3ppm, |
| Zn 3ppm, Pb 4ppm, Mo 5ppm, Ag 6ppm, Cd 8ppm, Sn 10ppm |
6, the conclusion, based on the above test results, Compass, 4294 proved oil/lubricant can be highly accurate and precise analysis and similar substrate metal elements content in the samples. The analysis scheme is simple, madaling mapatakbo, the result is feasible degree is high, is metal elements in petroleum field and laboratory analysis of effective tools.