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Turmeric survey: final report

Annex 1: Trace element quality assurance data

Annex 1 data tables trace element quality for assurance data.

Last updated: 12 September 2023
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Last updated: 12 September 2023
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Annex 1: Trace element quality assurance data tables (40.89 KB)

Recovery and limit of detection

Element Recovery (%) LoD (mg/kg)
Lithium 91 0.005
Beryllium 98 0.001
Boron 71 1
Sodium 57 5
Magnesium 100 1
Aluminium 64 0.5
Silicon 98 100
Phosphorus 95 10
Sulfur 90 500
Potassium 78 20
Calcium 81 5
Scandium 77 0.005
Titanium 55 0.1
Vanadium 67 0.01
Chromium 100 0.05
Manganese 100 0.1
Iron 100 1
Cobalt 100 0.005
Nickel 100 0.05
Copper 100 0.05
Zinc 100 0.2
Gallium 80 0.01
Germanium 80 0.01
Arsenic 110 0.005
Selenium 100 0.01
Rubidium 107 0.02
Strontium 95 0.02
Yttrium 91 0.001
Zirconium 89 0.01
Niobium 85 0.002
Molybdenum 90 0.02
Ruthenium 93 0.001
Rhodium 91 0.005
Palladium 89 0.005
Silver 75 0.01
Cadmium 90 0.005
Tin 99 0.005
Antimony 101 0.002
Tellurium 129 0.01
Caesium 128 0.001
Barium 109 0.02
Lanthanum 111 0.001
Cerium 105 0.001
Praseodymium 100 0.001
Neodymium 95 0.001
Samarium 95 0.001
Europium 95 0.001
Gadolinium 95 0.001
Terbium 90 0.001
Dysprosium 88 0.001
Holmium 88 0.001
Erbium 85 0.001
Thulium 87 0.001
Ytterbium 87 0.001
Lutetium 84 0.001
Hafnium 69 0.001
Tantalum 66 0.001
Tungsten 79 0.002
Rhenium 89 0.001
Osmium 90 0.005
Iridium 87 0.001
Platinum 97 0.001
Gold 90 0.002
Mercury 95 0.005
Thallium 96 0.005
Lead 94 0.005
Bismuth 101 0.001
Thorium 89 0.001
Uranium 94 0.001

Certified reference materials

Element NIST 1548a (mg/kg) Reference (mg/kg) Bias (%) INCT-OBTL-5 (mg/kg) Reference (mg/kg) Bias (%) ZC73012(mg/kg) Reference(mg/kg) Bias (%)
Lithium 0.028 None - 29.1 ~19.3 51 0.496 0.54 -8
Beryllium <0.001 None - 0.085 ~0.081 5 0.002 ~0.002 21
Boron 4.55 4.16 9 50 33.6 49 26.9 19.6 37
Sodium 7470 8130 -8 407 ~435 -7 12900 10900 18
Magnesium 325 580 -44 8810 8530 3 1690 2410 -30
Aluminium 79 72.4 9 3150 1980 59 130 166 -22
Silicon <100 ~78.7 -53 2280 None - <100 240 -74
Phosphorus 2920 3490 -16 1720 1700 1 4670 4600 1
Sulfur 1500 1930 -22 4840 4550 6 7320 7200 2
Potassium 6360 6970 -9 31500 22700 39 18200 15500 17
Calcium 1610 1970 -18 51600 40000 29 7010 7000 0
Scandium <0.005 ~0.0008 - 0.782 0.64 22 0.009 ~0.007 29
Titanium 5.8 ~4.7 23 199 ~80.7 146 5.6 ~9 -38
Vanadium 0.02 None - 6.41 4.01 60 0.05 ~0.11 -59
Chromium 0.05 None - 6.27 ~6.3 0 1.62 1.8 -10
Manganese 3.5 5.75 -39 191 180 6 13.8 18.7 -26
Iron 20 35.3 -42 1630 ~1490 9 68 98 -30
Cobalt 0.01 ~0.028 -63 0.919 0.981 -6 0.056 0.089 -37
Nickel 0.24 0.37 -35 8.21 8.5 -3 0.98 0.93 6
Copper 1.43 2.32 -38 9.64 10.1 -5 1.5 2.7 -44
Zinc 16.7 24.6 -32 51.9 52.4 -1 28.6 26 10
Gallium 0.01 None - 0.92 None - 0.03 None -
Germanium <0.01 None - 0.17 None - 0.02 ~0.004 421
Arsenic 0.195 0.2 -3 0.766 0.668 15 0.068 0.062 10
Selenium 0.23 0.25 -7 0.18 None - 0.23 0.2 16
Rubidium 3.78 None - 17.6 19.1 -8 20.4 19.6 4
Strontium 2.76 2.93 -6 116 105 11 52.4 48 9
Yttrium 0.003 None - 1.31 ~0.963 36 0.012 0.015 -19
Zirconium 0.05 None - 0.88 None - 0.04 None -
Niobium 0.002 None - 0.196 None - 0.012 ~0.014 -12
Molybdenum 0.22 0.26 -16 0.41

0.414

 -2 0.77 0.71 8
Ruthenium <0.001 None - <0.001 None - <0.001 None -
Rhodium <0.005 None - <0.005 None - <0.005 None -
Palladium <0.005 None - 0.058 None - 0.024 None -
Silver <0.01 Noe  - 0.05 0.053 -3 0.09 None -
Cadmium 0.034 0.035 -4 3.31 2.64 25 0.046 0.035 32
Tin 14.7 17.2 -15 0.163 None - 0.008 None -
Antimony 0.0078 ~0.009 -14 0.059 0.076 -21 0.008 None -
Tellurium <0.01 None - <0.01 None - <0.01 None -
Caesium 0.0087 None -

0.242

 0.288 -16 0.082 0.082 0
Barium 1.08 1.1 -2 64.1 67.4 -5 34.2 12 185
Lanthanum 0.003 None - 1.48 1.69 -13 0.02 0.024 -15
Cerium 0.004 0.01 -56 2.82 2.99 -6 0.043 0.044 -1
Praseodymium 0.001 None - 0.37 ~0.321 15 0.005 0.004 11
Neodymium 0.003 None - 1.47 1.33 10 0.017 0.015 11
Samarium 0.001 None - 0.29 0.264 10 0.017 0.015 -2
Europium <0.001 None - 0.065 0.06 7 0.005 ~0.004 28
Gadolinium 0.001 None - 0.268 ~0.243 10 0.003 0.003 -17
Terbium <0.001 None - 0.043 0.035 24 <0.001 ~0.0005 -
Dysprosium <0.001 None - 0.246 ~0.184 33 0.002 0.003 -13
Holmium <0.001 None - 0.048 ~0.035 39 <0.001 ~0.0005 -
Erbium <0.001 None - 0.14 0.101 38 0.002 ~0.001 14
Thulium <0.001 None - 0.019 ~0.014 39 <0.001 ~0.00023 -
Ytterbium <0.001 None - 0.119 0.115 3 0.002 0.001 5
Lutetium <0.001 None - 0.018 ~0.017 6 <0.001 ~0.00016 -
Hafnium 0.002 None - 0.034 0.291 -88 0.001 None -
Tantalum <0.001 None - 0.01 0.042 -75 0.001 None -
Tungsten 0.002 None - 0.05 None - 0.061 None -
Rhenium <0.001 None - 0.01 None - 0.001 None -
Osmium <0.005 None - <0.005 None - <0.005 None -
Iridium <0.001 None - <0.001 None - <0.001 None -
Platinum <0.001 None - <0.001 None - <0.001 None -
Gold <0.002 None -

0.003

 ~0.003 -4 <0.002 None -
Mercury <0.005 ~0.005 -49 0.018 0.021 -13 0.011 0.011 -2
Thallium <0.005 None - 0.064 0.051 24 0.006 ~0.006 -4
Lead 0.054 0.044 22 2.16 2.01 8 0.274 0.19 44
Bismuth 0.001 None - 0.115 None - 0.001 0.003 -52
Thorium 0.001 None - 0.519 0.503 3 0.006 0.009 -38
Uranium 0.002 None - 0.106 ~0.113 -6 0.021 0.02 7

'-' indicates values where they are issued as a reference value. 

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