Presaturation

From NMR Wiki

Revision as of 06:21, 18 June 2009 (edit) Young-Sang JUNG (Talk | contribs) ← Previous diff		Current revision (17:41, 18 June 2009) (edit) (undo) Evgeny Fadeev (Talk | contribs)
Line 1:		Line 1:
	<pulse title="Presaturation NMR experiment">		<pulse title="Presaturation NMR experiment">
-	anchors: @a @b @c @d @e	+	anchors: @a @b-------c--------d @e
-	disp: 2@a 16@b 0@c 1@d 8@e	+	disp: 2@a 16@b 8@e
-	time: rlx @a d1 @b ct @c dt @d aq @e	+	time: rlx @a d1 @b----------------d aq @e
-	rf H: cpd@a--b=cp 90@c=p1 acq@d-----e	+	rf H: cpd@a-----b=cp 90@c=p1 acq@d-----e
	delay rlx: hide=true		delay rlx: hide=true
-	delay ct: hide=true
-	delay dt: hide=true
	delay d1: label=^{d1}		delay d1: label=^{d1}
	phase phi1: label=90_x		phase phi1: label=90_x
	pulse p1: phase=phi1		pulse p1: phase=phi1
-
-
	acq: type=fid		acq: type=fid
-
	wp cp: label=cw		wp cp: label=cw

---

Current revision

Presaturation[1] is a technique of solvent signal suppression, where a long low-power pulse is applied on the solvent resonance before the pulse sequence.

Disadvantages of presaturation are discussed in the article on RAW technique[2].

References

1. Hoult, DI. Solvent peak saturation with single phase and quadrature Fourier transformation. J Magn Reson 21(2):337, 1976. BibTeX [presat]

2. Altieri, AS and Byrd, RA. Randomization approach to water suppression in multidimensional NMR using pulsed field gradients. Journal of Magnetic Resonance, Series B 107(3):260--266, 1995. BibTeX [raw]