Element

LODa (ppm)

Blank (ppm)

Duplicate (RPD) (%)

LCS Recovery (%)

Spike Recovery (%)

SRMb Recovery (%) DORM-2

Ba

0.08

BDLc

*

97.1

99.5

N/Ad

Sr

0.08

BDLc

12.7

98.6

101.3

N/A

Ti

0.16

BDLc

6.0

107.2

105.9

N/A

Au

0.17

BDLc

7.0

80.4

86.8

N/A

aLOD= Limit of detection; bSRM= Standard reference material; cBDL= Below detection limit; dthere is no standard reference material value, either certified or guidance for each of these four elements.

Table 3: Mean quality assurance and quality control data for Ba, Sr, Ti and Au analysis.