This is a preview. Log in through your library . Abstract Supernatant and resuspended pellet samples from a centrifugation of homogenised, etiolated oat seedlings were prepared and assayed ...

The development of simple, reliable ultraviolet and visible spectrophotometers within the last ten years has made available an analytical tool of great versatility and power. The role played by ...

To evaluate the purity of nucleic acid and protein samples, molecular scientists frequently compare the recorded spectrophotometric absorbance of a sample at 260 nm to the value measured at 280 nm.

Bulletin of the Torrey Botanical Club, Vol. 83, No. 2 (Mar. - Apr., 1956), pp. 136-140 (5 pages) 1. The investigations that are here reported employed air dried pilei of the closely related, similarly ...