2012-4. Retention Time Changes

What happens when the same method gives different retention times on different instruments? LCGC 30(4) 312-318 (2012) Justin Chow and John W. Dolan Erratum: (appreared in 30(6)) Equation 4 has a typographical error. It should read: Vm = 0.5 x 10^-3 x L x dc^2

Read More →

2009-8. Too Many Changes

Remember the Rule of One — change just one thing at a time LCGC 27(8) 606-610 (2009) John W. Dolan Erratum: LCGC 27(6), p 478. Table 1, in the third column, the next to last line should read 403913, not 36827, and the 36827 should shift down one row.

Read More →




2009-3. Calibration Curves, Part I: To b or Not to b?

Deciding on a zero intercept LCGC 27(3) 224-230 (2009) John W. Dolan Erratum: Figure 1 has the y-axis mislabeled. It should be 0-1000, not 0-2000. Also, attempts to replicate the results from Table 1 will be a problem because the values in Table 1 are rounded and more significant figures […]

Read More →

2008-5. How Do I …?

Are you stuck on which step to take next? LCGC 26(5) 440-446 (2008) John W. Dolan Erratum: equation 1, February 2007, LCGC 25(2), 142-152 contains an error summarized at the end of this article.

Read More →