Glow Discharge Mass Spectrometers GDMS

At present GDMS164 165 is one of the most powerful solid-state analytical methods for the direct determination of trace impurities and depth profiling of solids. The positively charged ions formed in the low pressure argon plasma of the glow discharge are extracted and accelerated into the double-focusing sector field mass spectrometer, quadrupole, ion trap or ToF mass analyzer. 

A GD mass spectrometer from Thermo Fisher Scientific with a direct current (dc) glow discharge ion source based on the mass spectrometric arrangement of the Element (Element GD) has been available on the analytical market since 2005 for sensitive multi-element analysis of trace impurities in conducting samples. The experimental arrangement of the dc GD ion source (Grimm type) and 

At present is one of the most powerful solid-state analytical methods for the direct 

---

GDMS mass spectrum obtained with the VG9000 glow discharge mass spectrometer. 

Glow discharge mass spectrometry (GDMS) An analytical technique where atoms are sputtered from a surface, ionized in the plasma, then mass analyzed in a mass spectrometer. 

GDMS Glow Discharge Mass Spectroscopy Sample forms the cathode for a D.C. glow discharge Sputtered atoms ionized in plasma Ions - analyzed in mass spectrometer 0.1-100 pm 3-4 mm (Bulk) trace element analysis deleclion limit sub-ppb 9,10... 

GDMS (glow discharge mass spectrometry) is a similar technique to GDOES but GDMS uses a mass spectrometer instead of an optical emission spectrometer. 

EDS energy-dispersive spectrometer GDMS glow discharge mass spectrometry... 

Demonstration of GDMS feasibility and research into glow-discharge processes has been carried out almost exclusively using the combination of a glow-discharge ion source with a quadrupole mass spectrometer (GDQMS). The combination is inexpensive, readily available and suitable for such purposes. In addition, the quadru-... 

---