8
February / March 2012
The Pareto chart of the standardised process (details in Figure 7) illustrates more than 90% of activities are now associated with the actual analysis. Following the reduction of wasteful activities, the process is now suitable to focus efforts on reducing the number of defects by reducing method variation.
Evaluation on the RXI-624 Sil MS; 20 m,
0.18 mm i.d, 1.0 µm film thickness column is in progress to compliment the existing standardised suite of methods by further improving sensitivity and selectivity for highly polar analytes.
Figure 7: A Pareto chart of standardised GC Process. Areas in orange are identified as business value activities; areas highlighted in green are identified as value adding activities.
Conclusion The standardised approach has reduced results turn around time from typically 1 week to <0.5 day. The instrument capacity has increased through better instrument
availability because multiple projects are using the same instrument. This has lead to increased GC support to projects for both analytical and synthetic chemistry without the requirement for extra human resource or large-scale financial investment. An additional benefit is a reduction in costs due to less columns being ordered.
References
1. C.K Swank (2003) ‘The lean service machine’. Harv. Bus. Rev. October
2. M Holweg, The genealogy of lean production. Journal of Operations Management 25 (2): 420-437
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