View source for Charge inversion mass spectrum

{{DefName|
Charge-inversion processes of the type 

::m<sup>+</sup> + N ?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂİ?Ǭ�?Ǭ�?��Ǩ��?���?�?Ǭ�?��Ǩ?�?ɂİ?Ǭ�?��Ǩ?�?ɂ��?Ǭ� m<sup>-</sup> + N<sup>2+</sup> 

	or 

::m<sup>- </sup>+ N ?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂİ?Ǭ�?Ǭ�?��Ǩ��?���?�?Ǭ�?��Ǩ?�?ɂİ?Ǭ�?��Ǩ?�?ɂ��?Ǭ� m<sup>+</sup> + N + 2e<sup>- </sup>

	that occur in a collision cell (containing a gas, N) located in a field-free region preceding a magnetic and electric sector combination placed in either order may be detected as follows: If the instrument slits are wide, and if the connections to the two sectors, appropriate to transmission of either positive or negative main-beam ions, are simply reversed, the negative or positive product ions of the two processes, respectively, will be transmitted. If the magnetic field is scanned, a spectrum of such product ions will be obtained, and this spectrum is called a charge-inversion mass spectrum. These spectra are sometimes referred to as charge reversal, or as ?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂ��?ɬ??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂİ?Ǭ�?���?��?ɬ�E and +E spectra, respectively. 

The terms "2E, E/2, -E, or +E mass spectrum" should not be used without prior explanation of the meaning of 2E, E, +E and ?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂ��?ɬ??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂİ?Ǭ�?���?��?ɬ�E. 

}}

== [[Orange Book]] Entry ==

Charge inversion processes of the types: M<sup>+</sup> + X<sup>?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂ��?ɬ??Ǭ�?Ǭ�?���?�?ɂİ?Ǭ�?Ǭ�-</sup>, M - + X<sup>2+</sup> or M - + X <sup>?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂ��?ɬ??Ǭ�?Ǭ�?���?�?ɂİ?Ǭ�?Ǭ�-</sup> M<sup>+</sup> + X + 2e respectively, occurring in a [[collision cell]] (containing a gas X) located in a [[field-free zone]] preceding a magnetic and electric sector combination placed in either order, may be detected as follows: if the instrument slits are wide and if the connections to the two sectors, appropriate to transmission of either positive or negative main-beam ions, are simply reversed, the negative or positive product ions respectively will be transmitted. If the magnetic field is scanned a spectrum of such ions will be obtained and this is termed a charge-inversion spectrum. These are sometimes referred to as -E and +E spectra. Note: The terms ?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂ��?ɬ??Ǭ�?Ǭ�?���?�?ɬ�?���?��?ɬ�2E, E /2,-E or +E mass spectrum?���?�?ɂ�??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂ��?ɬ??Ǭ�?Ǭ�?���?�?Ǭ�?��Ǩ?�?ɂ��?ɬ�?Ǭ�?Ǭ� should not be used without prior explanation of their meaning.


== Related Terms ==

[[Linked Scan]]


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[[Category:M/z Separation]]