Source for UV cut-off values of buffers
The primary reference for this type of data is the article by Li [1]. Snyder cites this paper as the primary source for UV cutoff values (&quot;Ref 7&quot; on the screenshot below) [2, p. 299]:



References

Li, J. B. Signal-to-Noise Optimization in HPLC UV Detection. LC GC 1992, 10 (11), 856–864.
Snyder, L. R.; Kirkland, J. J.; Glajch, J. L. Practical HPLC Method Development, 2nd ed.; Wiley: New York, 1997. ISBN 978-0-471-00703-6.