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Spark optical emission combined with the technique known as Pulse Distribution Analysis ( PDA- OES) is a well-established,very fast method to characterise non-metallic inclusions ( NMI) in the size range 1 - 10 μm.It is based on detection of the elemental signals from each single spark,where sparks hitting inclusions give rise to high intensities ( " outliers" ) of the characteristic elements of the NMI.Recent work has resulted in improved trueness of outlier detection by fitting the data to non-normal intensity distributions.Furthermore,the identification and classification of NMI types has been improved.An interesting aspect of PDA-OES for future development in quality assessment is to find correlations between NMI data and properties of the steel.For certain steel grades,it is also important to count and characterise larger NMI in the range 10 - 100 μm.Such large NMI are normally very rare,it is therefore necessary to scan a rather large area of several cm2 in order to obtain statistically valid data.Systems based on light optical microscopy ( LOM) for fast automatic scanning,recording the number,size and location of large NMI are used for this purpose.In this work,the possibility to combine LOM with laser ablation techniques for chemical analysis of large NMI is explored.It was shown that a miniature CCD spectrometer of low resolution (0,05 nm) was sufficient to identify emission in the laser induced plasma from the key NMI elements Ca,Mg,Mn and Ti.