> as lemmas

1857 W. A. Miller Elements Chem. III. 182 These perchlorinated compound ethers, such as the perchloracetic ether..and perchloroformic ether..are very unstable.

1965 Proc. National Acad. Sci. U.S.A. 54 254 The rate of digestion was measured by..spectrophotometric determination of perchloracetic acid-soluble peptides at 280 mμ.

2001 Diabetes (Nexis) July 1580 It was terminated by the addition of perchloroacetic acid.