Table 3.

Presence of Magnesium, Calcium, and Phosphorous Content Detected by Inductively Coupled Plasma Mass Spectrometry

Material		Magnesium*			Calcium*			Phosphorus**
		ppb	SD	%RSD	ppb	SD	%RSD	ppb	SD	%RSD
Stent	Set 1	125.57	3.70	2.95	564.09	10.39	1.84	417.70	2.62	0.63
	Set 2	41.33	1.31	3.18	215.70	4.63	2.15	545.37	3.24	0.59
Pellethane	Set 1	36.85	0.94	2.56	242.06	5.59	2.31	193.91	1.59	0.82
	Set 2	17.38	0.60	3.44	168.42	8.02	4.76	8.70	1.32	15.23
HEMA-Coated Pellethane	Set 1	7.79	0.37	4.74	87.68	4.74	5.41	84.33	1.30	1.54
	Set 2	7.55	0.55	7.32	43.08	2.95	6.84	292.55	1.95	0.67
TETRA-Coated Pellethane	Set 1	33.14	1.81	5.45	185.38	4.01	2.16	360.69	2.28	0.63
	Set 2	33.53	1.04	3.11	271.80	5.26	1.94	367.47	17.68	4.81

^*Isotopes measured in low resolution (R = 300): ²⁶Mg, ⁴³Ca, ⁷²Ge (internal standard)

^**Isotopes measured in medium resolution (R = 2500): ³¹P.

%RSD = % relative standard deviation; SD = standard deviation.