Cecil Instruments offer both high pressure gradient mixing and low pressure gradient mixing systems.The Adept HPLC series uses high pressure gradient mixing, whilst the Q-Adept systems offer low pressure gradient mixing.Binary, ternary or quaternary gradients may be generated.Both Adept and Q-Adept systems are fully 21 CFR part 11 compliant. Single point control of modules through PowerStream sofware, is facilitated by the digital connections. A new addition to the Cecil Instruments ranges of HPLC is the Merit range of HPLC systems. The Merit HPLC systems areavailable as isocratic or binary gradient low pressure mixing systems. They are very easy to use and highly affordable.