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Table 1: Accuracy—Recovery

Average

RSD

Average

RSD (%)

Child Formula Powder

00847RF00

3

1.6 (IU hg

-1

)

135 (IU hg

-1

)

97% 285 (IU hg

-1

)

101%

Infant Elemental Powder

00796RF

3

2.4 (IU hg

-1

)

136 (IU hg-1)

98% 276 (IU hg

-1

)

98%

Adult Nutritional RTF High Protein

00821RF00

3

0.5 (IU L

-1

)

269 (IU L

-1

)

98% 555 (IU L

-1

)

99%

Adult Nutritional RTF High Fat

00820RF00

3

3.6 (IU L

-1

)

270 (IU L

-1

)

98% 559 (IU L

-1

)

99%

Infant Formula RTF, Milk-Based

EV4H2Q

3

3.0 (IU L

-1

)

268 (IU L

-1

)

97% 547 (IU L

-1

)

97%

Child Formula Powder

00847RF00

3

0 (IU hg

-1

)

198 (IU hg

-1

)

100% 408 (IU hg

-1

)

101%

Infant Elemental Powder

00796RF

3

0 (IU hg

-1

)

191 (IU hg-1)

96% 395 (IU hg

-1

)

98%

Adult Nutritional RTF High Protein

00821RF00

3

0 (IU L

-1

)

389 (IU L

-1

)

98% 789 (IU L

-1

)

98%

Adult Nutritional RTF High Fat

00820RF00

3

0 (IU L

-1

)

403 (IU L

-1

)

101% 813 (IU L

-1

)

101%

Infant Formula RTF, Milk-Based

EV4H2Q

3

0 (IU L

-1

)

375 (IU L

-1

)

94% 789 (IU L

-1

)

98%

Global Mean

98%

99%

yes

Were products weighed into extraction vessels before spiking?

Were all spike recovery samples prepared on the same day?

+ Spike Level 2

Spike Recovery

Product

Replicates

(n)

Native level

Were products spiked before they were weighed into extraction vessels?

Analyte

no

no

+ Spike Level 1

SPIFAN Code

Was a portion of the product spiked?

Were all spike recovery samples taken from the same spiked product?

Were multiple portions of the product spiked and each spiked product analyzed?

Vitamin D

2

Vitamin D

3

Additional information to be completed by SD

yes

no

yes

What percentage of the spiked sample was the spiked was the spike blanc? (How much was product diluted by spike?)

Ethanol

0.5% (50 μL in 10 mL)

vitamin D

2

and vitamin D

3

Were all spike recovery samples prepared on multiple days?

Were spike recoveries calculated from theoretical additions?

Or was spiking solution analyzed and the results used to calculate spike recoveries?

yes

no

yes

What form of the nutrient was spiked into the product?

What kind of solution or solvent was used to deliver the spike to the product?

SPIFAN ERP Checklist v1.0

VitD-18 (February 2016)

FOR ERP USE ONLY

DO NOT DISTRIBUTE