Rectilinear ion trap

An LIT has the advantage over a three-dimensional ion trap of much-improved trapping efficiency, increased ion-storage capacity, improved ion-ejection efficiency, faster scan speeds, and improved detection sensitivity. 

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Gao L, Song QY, Patterson GE, Cooks RG, Ouyang Z et al. (2006) Handheld rectilinear ion trap mass spectrometer. Anal. Chem. 78 5994-6002. 

Song, O., Kothari, S., Senko, M.A., Schwartz, J.C., Amy, J.W., Stafford, G.S., Cooks, R.G., Ouyang, Z., Rectilinear ion trap mass spectrometer with atmospheric pressure interface and electrospray ionization source. Anal. Chem. 2006, 78, 718. 

Figure 3.20. Basic design of a rectilinear ion trap. (Reproduced from ref. 54 by permission of the American Chemical Society, Washington, DC. copyright 2004.)...

Mass analyzer based on rectilinear geometry ion trap... 

Fig. 10. Rectilinear geometry ion trap (RIT) assembly (a) and instrumentation (b) Reproduced with permission from Ouyang et al. [19]. Copyright 2004 American Chemical Society.

Quadnipole fundamentals that can be applied to 3D- and 2D-quadmpole field ion traps can be found in the book by Dawson. We will use the acronym XQIT in this text, where X is a variable that refers to all quadrupole field ion traps whether they have 2D- or 3D-quadrupole fields. For the 2D traps, X will be replaced by L for linear, RL for rectilinear, T for toroidal, and C for curved, allowing for a nomenclature system for future geometries. 

In 2004, the Cooks group at Purdue built a rectilinear-LQIT (RLQIT) with rectangular electrodes, and they previously built cylindrical ion traps (CIT). Both of these traps are attractive alternatives to XQITs that use hyperbolic electrodes because they are easier to build. 

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