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Table 1 Accuracy of elemental concentrations in certified reference material of apple leaves (CRM 1515) measured after micro-scaled digestion.

From: Micro-scaled high-throughput digestion of plant tissue samples for multi-elemental analysis

Element

Certified reference concentration μg g-1

Sample quantity, mg

  

1

2

5

10

15

20

  

Accuracy (% of certified reference concentration)

K

16100 ± 200

91 ± 1

88 ± 1

95 ± 4

111 ± 2

115 ± 1

116 ± 1

Ca

15260 ± 150

100 ± 1

98 ± 2

97 ± 5

n.d.

n.d.

n.d.

Mg

2710 ± 80

100 ± 4

100 ± 5

96 ± 3

107 ± 2

110 ± 2

110 ± 1

S

1800 ± 192

244 ± 6

143 ± 2

111 ± 8

108 ± 2

109 ± 1

107 ± 2

P

1590 ± 220

99 ± 1

100 ± 3

98 ± 4

103 ± 3

104 ± 1

103 ± 2

Al

286 ± 9

100 ± 8

111 ± 12

95 ± 3

n.d.

n.d.

n.d.

Fe

83 ± 5

81 ± 1

80 ± 3

75 ± 4

92 ± 3

93 ± 2

90 ± 1

Mn

54 ± 3

100 ± 2

101 ± 1

100 ± 4

103 ± 2

106 ± 2

105 ± 1

Zn

12.5 ± 0.3

106 ± 3

95 ± 7

100 ± 5

104 ± 2

105 ± 1

103 ± 2

Cu

5.64 ± 0.24

90 ± 4

98 ± 1

99 ± 4

108 ± 3

107 ± 1

106 ± 1

Mo

0.094 ± 0.013

168 ± 12

132 ± 9

91 ± 4

n.d.

n.d.

n.d.

  1. Values are means ± SE (n = 4).