When a gun is fired, in addition to the bullet many other materials exist the brarrel of the weapon, and are collectively termed gun shot residue(GSR). GSR is mainly comprized of gunpowder particles, and carbonaceous soot),ignition primer(typically calcium,lead, barium and antimony complexes),and metals(from the cartridge case, bullet coating and metal jacket-often containing brass or lead, somtimes with nickel coatings, and lead or antimony from the bullet core) 請(qǐng)發(fā)郵件至info-sci.cn@horiba.com，直接索取更多應(yīng)用案例 X射線熒光分析顯微鏡 X射線熒光分析顯微鏡