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Grimm-type source

Besides the conventional Grimm-type dc source, which has dominated the GD-OES scene for approximately 30 years, other discharge sources are well known. Among those are various boosted sources which use either an additional electrode to achieve a secondary discharge, or a magnetic field or microwave power to enhance the efficiency of excitation, and thus analytical capability none of these sources has, however, yet been applied to surface or depth-profile analysis. [Pg.223]

Figure 2.25 Experimental arrangement of modified Grimm-type dc GD ion source design with flow tube. (Reproduced by permission of N. lakubowski, Nachrichten aus der Chemie, 2003.)... Figure 2.25 Experimental arrangement of modified Grimm-type dc GD ion source design with flow tube. (Reproduced by permission of N. lakubowski, Nachrichten aus der Chemie, 2003.)...
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... [Pg.157]

Figure 9 Schematic diagram of a Grimm-type glow discharge source. (From Ref. 29.)... Figure 9 Schematic diagram of a Grimm-type glow discharge source. (From Ref. 29.)...
Other improvements Jet-boosted GD in various configurations has been developed to improve precision, linearity and limits of detection in combination with AES [164]. Also, a two-cascade GD ion source proved highly effective with double-focusing MS, with which it provided sensitivity comparable to that of the ICP technique [165]. Finally, new hardware for rfGD from a Grimm-type excitation source enabled the analysis of very thin layers of target samples [166]. [Pg.398]

Fig. 8,16, Sources for GD-AES. (A) Grimm-type (planar cathode). (B) Hollow-cathode type. (Reproduced with permission of the American Chemical Society.)... Fig. 8,16, Sources for GD-AES. (A) Grimm-type (planar cathode). (B) Hollow-cathode type. (Reproduced with permission of the American Chemical Society.)...
A modified version of the Grimm-type GDL has been described by Shao and Horlich [594], The source has a floating restrictor and is designed so as to replace an ICP torch in an ICP-MS. Therefore, the anode is slightly positive with respect to the earthed skimmer interface of the MS system. The simultaneous analysis of an unknown sample and a reference material was carried out by means of a system based on two pulsed GD sources housed within the same tube [595], Optimization of the relative position of the two cathodes was achieved by evaluating the signals produced in GD-MS when using the same specimen for each of them. [Pg.278]

Broekaert J. A. C., Brushwyler K. R., Monnig C. A. and Hieftje G. M. (1990) Fourier-transform-atomic emission spectrometry with a Grimm-type glow-discharge source, Spectrochim Acta, Part B 45 769-778. [Pg.313]

Similar to "Grimm type" DC source Pump down in 10 s... [Pg.733]

FIGURE 40.7 The five common glow discharge source configurations. (A) Coaxial cathode. (B) Planar diode. (C) Hollow cathode. (D) Hollow cathode plume. (E) Grimm type. Adapted from Reference [132]. [Pg.898]

Beyer, C., Feldmann, I., Gilmour, D., Hoffmann, V, Jakubowski, N. (2002) Development and analytical characterization of a Grimm-type glow discharge ion source operated with high gas flow rates and coupled to a mass spectrometer with high mass resolution. Spectrochimica Acta Part B Atomic Spectroscopy, 57,1521-1533. [Pg.933]

Investigations of a magnetically enhanced Grimm-type glow discharge source, Appl. Spectrosc. 49 241-246. [Pg.369]

Jakubowski, N., Feldmann, I., and Stuewer, D. (1997). Grimm-type glow discharge ion source for operation with a high resolution inductively coupled plasma mass spectrometry instrument./. Ana/. At. Spectrom. 12(2), 151. [Pg.227]

See other pages where Grimm-type source is mentioned: [Pg.222]    [Pg.52]    [Pg.397]    [Pg.277]    [Pg.901]    [Pg.277]    [Pg.316]    [Pg.222]    [Pg.52]    [Pg.397]    [Pg.277]    [Pg.901]    [Pg.277]    [Pg.316]    [Pg.223]    [Pg.615]    [Pg.54]    [Pg.54]    [Pg.267]    [Pg.280]    [Pg.54]    [Pg.392]    [Pg.402]    [Pg.274]    [Pg.145]    [Pg.694]    [Pg.32]    [Pg.407]    [Pg.3522]   
See also in sourсe #XX -- [ Pg.316 ]



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Grimme

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