Determination of sulfur in coal using direct solid sampling and high-resolution continuum source molecular absorption spectrometry of the CS molecule in a graphite furnace

► Solid coal is analyzed directly after grinding. ► Sulfur is determined by high-resolution molecular spectroscopy in a graphite furnace. ► The gaseous sulfur monocarbide CS is used for determination. ► Calibration against aqueous solutions of l-cysteine.