AI10382-GC-MS-Food Safety-Analysis - page 212-213

5 4
Original instrument configuration SSL s/n 712100036 and FID s/n 712300088
nC10 nC12 nC14 nC16 nC18 nC20 nC22 nC24 nC26 nC28 nC30 nC32 nC34 nC36 nC38 nC40
Average (counts) 2620726 2666702 2615432 2636561 2573604 2588848 2574011 2569231 2549064 2564570 2637520 2631510 2559913 2593130 2492829 2552320
SD 12355 10941 11571 11889 12894 12092 15913 14767 15078 15223 14298 13319 11161 13430 12358 13908
RSD % 0.47% 0.41% 0.44% 0.45% 0.50% 0.47% 0.62% 0.57% 0.59% 0.59% 0.54% 0.51% 0.44% 0.52% 0.50% 0.54%
Change of SSL module - Instrument configuration SSL 712300021 / FID 712300088
Average (counts) 2705439 2722254 2654680 2680682 2615418 2647035 2626550 2624551 2604909 2618663 2699958 2707570 2658013 2713142 2598635 2604178
SD 8276 7559 8759 9119 11059 11146 12635 14822 13711 16916 16529 17096 12977 10030 12448 10215
RSD % 0.31% 0.28% 0.33% 0.34% 0.42% 0.42% 0.48% 0.56% 0.53% 0.65% 0.61% 0.63% 0.49% 0.37% 0.48% 0.39%
Variation % -3.2% -2.1% -1.5% -1.7% -1.6% -2.2% -2.0% -2.2% -2.2% -2.1% -2.4% -2.9% -3.8% -4.6% -4.2% -2.0%
Change of FID module - Instrument configuration SSL 712300021 / FID 712300126
Average (counts) 2752208 2777431 2705697 2728377 2668020 2699389 2678126 2670723 2649792 2665081 2745907 2757795 2703327 2763143 2653118 2666225
SD 13455 15147 15120 11600 15162 14201 15885 15954 14781 15601 11514 14864 10635 13223 15755 11218
RSD % 0.49% 0.55% 0.56% 0.43% 0.57% 0.53% 0.59% 0.60% 0.56% 0.59% 0.42% 0.54% 0.39% 0.48% 0.59% 0.42%
Variation % -1.7% -2.0% -1.9% -1.8% -2.0% -2.0% -2.0% -1.8% -1.7% -1.8% -1.7% -1.9% -1.7% -1.8% -2.1% -2.4%
Table 3. Variation in peak area as effect of module swap. All variations are in the range of few % changing either the inlet or the FID detector
Original instrument configuration SSL s/n 712100036 and FID s/n 712300088
nC10 nC12 nC14 nC16 nC18 nC20 nC22 nC24 nC26 nC28 nC30 nC32 nC34 nC36 nC38 nC40
Average (minutes) 2.562 3.934 5.252 6.445 7.525 8.507 9.408 10.236 11.004 11.717 12.385 13.009 13.598 14.153 14.680 15.190
SD 0.0005 0.0009 0.0009 0.0008 0.0007 0.0012 0.0007 0.0012 0.0012 0.0011 0.0005 0.0012 0.0011 0.0012 0.0013 0.0010
RSD % 0.02% 0.02% 0.02% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.00% 0.01% 0.01% 0.01% 0.01% 0.01%
Change of SSL module - Instrument configuration SSL 712300021 / FID 712300088
Average (minutes) 2.566 3.938 5.255 6.448 7.527 8.509 9.410 10.238 11.005 11.719 12.386 13.011 13.599 14.154 14.679 15.188
SD 0.0006 0.0012 0.0007 0.0004 0.0009 0.0007 0.0007 0.0014 0.0007 0.0015 0.0009 0.0015 0.0009 0.0014 0.0015 0.0014
RSD % 0.02% 0.03% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Variation % -0.2% -0.1% -0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
Change of FID module - Instrument configuration SSL 712300021 / FID 712300126
Average (minutes) 2.563 3.935 5.254 6.446 7.525 8.508 9.408 10.237 11.004 11.718 12.384 13.011 13.598 14.154 14.679 15.186
SD 0.0007 0.0007 0.0010 0.0007 0.0014 0.0008 0.0009 0.0014 0.0010 0.0009 0.0009 0.0010 0.0018 0.0007 0.0014 0.0019
RSD % 0.03% 0.02% 0.02% 0.01% 0.02% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Variation % 0.1% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
Table 4. Variation in retention time as effect of module swap. All variations are in the range of 1/100 of a minute or less, changing either the inlet or the FID detector
nC10 nC12 nC14 nC16 nC18 nC20 nC22 nC24 nC26 nC28 nC30 nC32 nC34 nC36 nC38 nC40
Injection 1 2.562 3.935 5.253 6.445 7.525 8.506 9.408 10.237 11.005 11.717 12.385 13.010 13.598 14.153 14.680 15.190
Injection 2 2.562 3.933 5.252 6.445 7.525 8.508 9.408 10.237 11.005 11.718 12.385 13.010 13.598 14.153 14.678 15.188
Injection 3 2.562 3.933 5.252 6.445 7.523 8.505 9.407 10.233 11.003 11.715 12.383 13.007 13.597 14.152 14.680 15.189
Injection 4 2.562 3.935 5.253 6.445 7.525 8.508 9.408 10.237 11.005 11.718 12.385 13.008 13.598 14.152 14.678 15.188
Injection 5 2.562 3.933 5.252 6.445 7.525 8.508 9.408 10.237 11.003 11.717 12.385 13.010 13.600 14.154 14.678 15.191
Injection 6 2.562 3.933 5.252 6.445 7.525 8.508 9.408 10.237 11.005 11.717 12.385 13.010 13.598 14.153 14.680 15.189
Injection 7 2.562 3.933 5.252 6.447 7.525 8.507 9.407 10.237 11.003 11.718 12.385 13.008 13.597 14.153 14.681 15.190
Injection 8 2.562 3.933 5.252 6.445 7.525 8.507 9.408 10.235 11.003 11.717 12.385 13.008 13.598 14.150 14.680 15.190
Injection 9 2.560 3.932 5.250 6.443 7.523 8.506 9.408 10.235 11.002 11.717 12.385 13.008 13.597 14.153 14.682 15.191
Injection 10 2.562 3.933 5.252 6.445 7.525 8.508 9.408 10.237 11.005 11.718 12.385 13.010 13.597 14.152 14.682 15.188
Average (minutes) 2.562 3.934 5.252 6.445 7.525 8.507 9.408 10.236 11.004 11.717 12.385 13.009 13.598 14.153 14.680 15.190
SD 0.0005 0.0009 0.0009 0.0008 0.0007 0.0012 0.0007 0.0012 0.0012 0.0011 0.0005 0.0012 0.0011 0.0012 0.0013 0.0010
RSD % 0.02% 0.02% 0.02% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% 0.00% 0.01% 0.01% 0.01% 0.01% 0.01%
Table 2. Retention time standard deviation in the range of 1/1000 minute