A personal computer-based gradient system for high-performance liquid chromatography with low-pressure mixing

A low-cost gradient system for high-perf

A low-cost gradient system for high-performance liquid chromatography : Quantitation of complex pharmaceutical raw materials

✍ F. Erni; R.W. Frei; W. Lindner 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 655 KB

A device is described that makes use of an eight-port motor valve to generate step gradients tin the low-pressure side of a piston pump with a Low dead volume. Such a gradient device with an automatic control unit, which also permits repetition of previous steps, can be .buiEt for about half the cos