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Table 1 Replicates of pH readings from control (standard Enteral) strips and tributyrin impregnated strips exposed to solutions of water (W), 100 U/ml porcine pancreatic lipase (PPL) and 100 U/ml Candida antarctica lipase (CAL)

From: Development and validation of ester impregnated pH strips for locating nasogastric feeding tubes in the stomach—a multicentre prospective diagnostic performance study

 

Replicate 1

Replicate 2

Replicate 3

Replicate 4

Replicate 5

Solutions applied to pH strips

W

PPL

CAL

W

PPL

CAL

W

PPL

CAL

W

PPL

CAL

W

PPL

CAL

pH readings: control strip

7

4

3.5

7

4

3.5

7

4

3.5

7

4

3.5

7

4

3.5

pH readings: tributyrin strip

7

7

7

7

7

7

7

7

7

7

7

7

7

7

7