29

Saturation expt of O¹⁷ resonance with a sample of enriched
H₂O¹⁷ in 0.00019 M MnSO₄ solution

No. of cells	H₁	Signal amplitude
1/2	0.022	18.5
1	0.053	33.5
1 1/2	0.089	39
2	0.134	39.5
2 1/2	0.174	34
3	0.218	23

H_s = 0.086 G
G ~ 65

Assume saturation occurs at H₁ = 0.1

x	H₁	SIG AMP
0.2	0.0283 G	0.51 x 40
0.4	0.0566	0.864
0.6	0.0849	1.025
0.707	-	1.04
0.8	0.113	1.027
1.0	0.142	0.96
1.2	0.169	0.851
1.4	0.198	0.74
1.6	0.226	0.641