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Table 1 Average Bruker score against triplicate reference spectra from seeds collected in 2017 for 12 blind-test seeds also collected in 2017 from Harmondsworth Moor, Lampeter, Rhosmaen, and Silwood Park (three seeds from each site)

From: Discrimination between regional biotypes of Impatiens glandulifera using a simple MALDI-TOF MS-based method for use with seeds

Blind-test number

Average Bruker score against triplicate reference spectra for seeds from

Identification call

Accuracy after unblinding

Harmondsworth Moor

Lampeter

Rhosmaen

Silwood Park

1

1.507

2.357

2.154

1.742

Lampeter

Correct

2

1.312

2.111

2.305

1.790

Rhosmaen

Correct

3

1.473

1.778

1.801

2.419

Silwood Park

Correct

4

1.317

1.993

2.306

1.821

Rhosmaen

Correct

5

2.132

1.465

1.452

1.476

Harmondsworth Moor

Correct

6

2.155

1.495

1.429

1.412

Harmondsworth Moor

Correct

7

1.185

2.196

2.175

1.541

Lampeter

Correct

8

1.403

1.805

1.886

2.252

Silwood Park

Correct

9

1.537

2.257

2.383

1.892

Rhosmaen

Correct

10

1.193

1.404

1.804

2.422

Silwood Park

Correct

11

0.969

2.261

2.089

1.900

Lampeter

Correct

12

2.384

1.124

1.574

1.542

Harmondsworth Moor

Correct

  1. The highest average Bruker score is given as the identification call in the penultimate column, and the accuracy of this after unblinding the data is shown the final column