Detection Target
Determination of Ca, K, Mg and Na content in Fatty acid methyl ester (FAME)
Overview
HKL-14538 conforms to EN14538 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).
Elemental composition of biodiesel is required for product quality-control, auto-engine life, emissions control, and researching appropriate additives. The use of microwave assisted acid digestion reaction system to prepare neat biodiesel (B100) samples in an aqueous medium for simultaneous inductively coupled plasma optical emission spectrometer (ICP-OES) analyses is reported. Biodiesel produced by transesterification reaction was subjected to the test method using calibration standards prepared in an aqueous medium. Significant correlation for the spiked B100 samples, instrument detection limits, accuracy, and precision data showed that elemental concentrations can easily be determined within the specified limits. The method avoids switching any of the ICP-OES accessories required for high organic loads. This method is most appropriately devised for biodiesel analysis than petrochemicals analysis.
Technical Parameters
Table1. Main Technical Parameters of HKL-14538 | |
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 |
Raster specification | Ion-etched holographic grating, engraved line density 2400L/ mm; scribed area (80 × 110) mm |
Line dispersion reciprocal | 0.26nm/m |
Resolution | ≤0.015nm(2400 wire grating) |
Main host Parameters | |
Scanning wavelength range | 195nm～800nm（2400L/mm wire grating） |
Repeatability | RSD≤1.5％ |
Stability | RSD≤2.0％ |
Typical element spectrum and curve
