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Table 3 Summary of ipratropium detection by LC–MS/MS

From: Mass spectrometry detection of inhaled drug in distal fibrotic lung

Biopsy sample ID

Biopsy type

Ipratropium detected (±)

Sample weight (mg)

3A

TBC (Distal)

+ 

3.4

4A

TBC (Distal)

+ 

20.4

5A

TBC (Distal)

+ 

23.2

6A

TBC (Distal)

+ 

0.1

6B

TBC (Distal)

+ 

7.8

8A

TBC (Distal)

+ 

97.8

3B

Endobronchial (Proximal)

+ 

< 0.1

3C

Endobronchial (Proximal)

+ 

2.6

4B

Endobronchial (Proximal)

+ 

< 0.1

4C

Endobronchial (Proximal)

+ 

0.1

4D

Endobronchial (Proximal)

+ 

1.9

5B

Endobronchial (Proximal)

+ 

0.1

5C

Endobronchial (Proximal)

+ 

< 0.1

5D

Endobronchial (Proximal)

No Sample*

1.2

6C

Endobronchial (Proximal)

+ 

< 0.1

6D

Endobronchial (Proximal)

+ 

< 0.1

6E

Endobronchial (Proximal)

+ 

< 0.1

8B

Endobronchial (Proximal)

+ 

< 0.1

8C

Endobronchial (Proximal)

+ 

< 0.1

8D

Endobronchial (Proximal)

+ 

0.5

  1. *Endobronchial biopsy sample 5D was lost during sample preparation