Table 6.

The average value of the maximum responses of the sensors.

Sample

LY2/LG (s1)

LY2/G (s2)

LY2/AA (s3)

LY2/GH (s4)

LY2/gCTL (s5)

LY2/gCT (s6)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Gansu group

0.190

12.815

−1.200

− 22.489

− 1.320

− 23.583

−0.482

−16.996

−0.652

−18.448

−0.094

−24.271

Yunnan group

0.379

10.293

−0.622

−8.697

−0.876

n10.231

−0.958

−14.118

−1.030

−11.655

−0.054

−12.580

Sample

T30/1 (s7)

P10/1 (s8)

P10/2 (s9)

P40/1 (s10)

T70/2 (s11)

PA/2 (s12)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Mean

RSD (%)

Gansu group

0.587

13.364

0.389

18.402

0.329

14.859

0.275

19.783

0.566

16.844

0.675

9.494

Yunnan group

0.386

8.303

0.214

9.610

0.257

9.365

0.132

11.705

0.329

9.662

0.462

6.351