HK-ICP6800S Apparatus for 16 Abrasion Elements in Lube Oils
Overview
HK-ICP 6800S conforms to ASTM D4951 Standard Test Method for
Determination of Additive Elements in Lubricating Oils by Inductively Coupled
Plasma Atomic Emission Spectrometry & Fat and oil derivatives - Fatty acid methyl
ester (FAME) - Determination of Ca, K, Mg and Na content by optical emission
spectral analysis with inductively coupled plasma (ICP OES).
In the daily work and production process, some special components are often
protected, so it is necessary to regularly monitor the accumulation of wear particles
on theses components, which is often the analysis of metal elements in oil, based on
the composition of metal components. And the accumulation rate in the oil can
accurately determine the failure cycle of the machine components. In addition,
lubricating oil also needs to monitor its foreign contamination components (such as
metal elements brought in by dust and dirt). Determining the content of wear metal
in the lubricant can accurately understand the operating status and performance of
the equipment. The metal contained in the oil shows the severity of the wear of the
parts, which is very important for the maintenance of the equipment and the
evaluation of the working performance. Monitoring methods for the determination
of trace metals in lubricating oils as a component of wear are particularly important.
HK-ICP6800S Brief Introduction
Table 1, Main Technical Parameters of HK-ICP6800S
High Frequency Generator
Working Frequency 27.12MHz
Stability ﹤0.05％
Output power 800W ～1600W
Stability ≤0.05％
Matching method Automatic
Scanning spectrometer
Light path Czerny turner
Focal length 1000mm
Ion-etched holographic grating, engraved line density
Raster specification
3600L/mm or 2400L/mm; scribed area (80×110)mm
Line dispersion reciprocal 0.26nm/m
≤0.008nm(3600 wire grating）
Resolution
≤0.015nm(2400 wire grating)
Main host parameters
Scanning wavelength 195nm～500nm（3600L/mm wire grating）
range 195nm～800nm（2400L/mm wire grating）
Repeatability RSD≤1.5％
Stability RSD≤2.0％
Test part
1.1 Apparatus and reagents
HK-ICP6800S
with sample injection system
Oxygen-assisted sampling gas path device
1.1.1 CONOSTAN S-21 mixed standard oil
1.1.2 CONOSTAN Co standard liquid
1.1.3 CONOSTAN ICP dedicated diluent
1.1.4 Pipette, 0-5ml
1.1.5 Electronic balance, 0.1mg
1.2 Working condition requirements
High frequency generator: 27.12MHz, 0.7mm quartz torch with center channel, high
frequency power 1200W, plasma gas flow 15L/min, auxiliary gas flow 0.99L/min,
carrier gas flow 0.35L/min, oxygen flow rate 50ml/min, temperature of the atomizing
chamber -20℃, peristaltic pump speed 3ml/min
1.3 Sample Treatment
Dilute the gasoline sample 10 times and then injected for testing.
Take the lube oil sample by weighing method and dilute it by diluent to the marked
line
The internal standard calibration method is for eliminating the difference of the
sample matrix during the test.
1.4 Test Method
After the apparatus is automatically ignited and the parameters are set according
to the working conditions of the apparatus, the diluent is directly sucked into the
mist chamber through the nebulizer and enters the plasma. After the apparatus is
stable, measure the blank solution, standard solution, standard solution and diluted
sample solution at one time. The content of each element in the final sample can be
directly obtained.
1.5 Results comparison
Take 0.1g lubricating oil as the sample, place it into 100ml volumetric flask. Take the
internal standard diluent to the mark, shake well. Then the results are as below:
Element PE ICP Avio200 Agilent ICP 5110 HK-ICP6800S
Calcium（Ca） 4225.7ppm 4415.1ppm 4135.8ppm
Magnesium（Mg） 21.5ppm 15.8ppm 29.1ppm
Phosphorus（P） 1026.2ppm 1048.3ppm 1164.3ppm
Zink（Zn） 1133.1ppm 1117.6ppm 1131.2ppm
Typical element spectrum and curve:
Conclusion
The relative digestion method for the direct determination of multiple elements in
gasoline and lubricating oil by ICP has high accuracy and good reproducibility, which
not only greatly saves the time of sample digestion and reduces the environmental
pollution caused by acid, but also has a great The technical level requirements are
greatly reduced, and it can be promoted and used in the petrochemical industry.
HK-ICP6800S has the characteristics of low test cost, fast test speed, and high
method accuracy. It can directly determine multiple elements in gasoline and
lubricant samples, which can fully meet the test requirements of different customers
in the petrochemical industry.
