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Table 1 Spiked concentrations of BPA and BPA-glucuronide in three phases of round robin

From: A round robin approach to the analysis of bisphenol a (BPA) in human blood samples

Phase #

Sample #

Sample type

Concentration of spiked uBPA (ng/ml)

Concentration of spiked BPA-G (ng/ml)

  

Pooled human serum

Experimental blanks

Environmental sample

Commercial rat serum

  

1

1

X

   

0.2

2

2

X

   

0.8

4

3

X

   

3.2

8

4

X

   

6.4

16

5

X

   

12.8

32

6

X

   

-

-

7

 

water

  

-

-

8

 

stripped serum

  

-

-

9-13

  

Xa

 

-

-

14-18

  

X

 

-

-

2b

1

X

   

0.5

0.5

2

X

   

1.3

1.3

3

X

   

3.1

3.1

4

X

   

7.8

7.8

5

X

   

19.5

19.5

6

X

   

-

-

7-11

  

X

 

-

-

3b

1

X

   

0.5

0.5

2

X

   

1.3

1.3

3

X

   

3.1

3.1

4

X

   

7.8

7.8

5

X

   

19.5

19.5

6

X

   

-

-

7

X

   

-

3.1

8

X

   

-

-

9

   

X

0.09

0.8

10

   

X

-

2.3

11

   

X

-

-

12-17

  

X

 

-

-

  1. aSamples were collected with materials known to introduce BPA contamination. bNon-stripped human serum used for spiked samples.
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Environmental Health

ISSN: 1476-069X