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TableĀ 2 Average Bruker score against triplicate reference spectra from seeds collected in 2017 for 12 blind-test seeds collected in 2016 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

13

1.455

2.170

2.115

1.842

Lampeter

Correct

14

0.972

2.247

2.165

1.949

Lampeter

Incorrect (Rhosmaen)

15

2.322

1.390

1.378

1.251

Harmondsworth Moor

Correct

16

1.155

2.014

2.026

1.639

Rhosmaen

Correct

17

2.041

1.525

1.487

1.603

Harmondsworth Moor

Correct

18

1.384

1.433

1.650

2.399

Silwood Park

Correct

19

1.325

2.207

2.181

1.645

Lampeter

Correct

20

1.404

1.495

1.621

2.336

Silwood Park

Correct

21

1.710

1.855

1.996

2.350

Silwood Park

Correct

22

1.136

2.185

1.936

1.772

Lampeter

Correct

23

2.006

1.754

1.734

1.587

Harmondsworth Moor

Correct

24

1.488

2.280

2.371

1.779

Rhosmaen

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