Analysis of Crude Oil and Lubricants

%Recoveries of Elements in NIST Standard Reference Materials

SRM 1084a (Wear Metals in oil)


(Uncertainties are shown at the 95% confidence level)
Element M/Z Unit Certified Value %Recoveries
Ag 107 �g/g 101.4 � 1.5 98.3 � 0.6
Al 27 �g/g 104 ** 93.9 � 2.0
Cr 53 �g/g 98.3 � 0.00 99.2 � 6.0
Cu 63 �g/g 100 � 1.9 99.9 � 1.0
Fe 57 �g/g 98.9 � 1.4 99.4 � 2.7
Mg 25 �g/g 99.5 � 1.7 102 � 1.3
Mo 98 �g/g 100.3 � 1.4 96.4 � 2.0
Ni 60 �g/g 99.7 � 1.6 98.8 � 1.0
Pb 208 �g/g 101.1 � 1.3 100 � 1.0
S 34 �g/g 1700 ** 94.9 � 9
Sn 118 �g/g 97.2 � 2.6 98.0 � 1.0
Ti 47 �g/g 100.4 � 3.8 100 � 0.7
V 51 �g/g 95.9 � 9.4 101 � 1.3
** Non-certified Values Given for Information Only


ICP-MS Results for Conostan Metallo-Organic Standard S-21(Conoco Specialty Products Inc.)

Element Concentration Unit %Recovery
Al 900�g/g 103 ± 0.03
B 900�g/g 107 ± 3
Ba 900�g/g 95.8 ± 1.5
Ca 900�g/g 110 ± 0.9
Cd 900�g/g 102 ± 4
Cr 900�g/g 100 ± 3
Cu 900�g/g 102 ± 2
Fe 900�g/g 102 ± 3
Mg 900�g/g 106 ± 1.4
Mn 900�g/g 99.9 ± 3
Mo 900�g/g 102 ± 3
Na 900�g/g 108 ± 8
Ni 900�g/g 101 ± 3
Pb 900�g/g 103 ± 3
Sn 900�g/g 99.2 ± 3
Ti 900�g/g 104 ± 1.4
V 900�g/g 102 ± 3
Zn 900�g/g 109 ± 2.8
(Uncertainties are shown at the 95% confidence level)

Contact: Xinbang Feng, Ph.D. (Phone: 780-632-8464)
E-mail to: [email protected]

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