M-002 Dual Channel Serial Injection with front cut - Analyst with ICC-CE
From LEAP
| Dual Channel Serial Injection with Front Cut |
| Application Type | |
| SPECIAL | |
| Application ID | |
| M-002 | |
| Description | |
| High throughput where one column is regenerating while the other is performing analytical separation. An additional valve allows solvent front to be cut to waste. |
Overview
This configuration allows the regeneration of one of the analytical columns while the other one is engaged - giving greater efficiency and higher throughput and allows solvent front to be cut to waste with a selector valve. This is run directly from within Analyst Software[1] from Applied Biosystems Inc using a Standard LEAP Cycle (requires ICC-CE software) [2].
There are 2 pumps needed, one for the gradient run and another (higher flow rate and isocratic) for regeneration [3]. This configuration requires a TrioVS Valve [4]. All of the valves must be controlled by the Standard LEAP cycle.
LEAP can not control the MS Selector valve as part of the cycle.
| Key Benefits |
| Saving of Reagent time (Back cut) [5] |
| Increase throughput at little cost |
| Control is all within Analyst Software |
| Compliance not affected |
| Avoids contaminating MS inlet with early eluting compounds and solvent |
| Restrictions |
| Cannot do "Look Ahead"[6] |
| Injections are not staggered[7] |
| Peaks of interest must come off early |
| Columns may perform slightly different on alternating samples |
| Requires TrioVS valve |
| Code | Application | Control SW | Key Hardware | Key Benefits | Restrictions | GLP |
|---|---|---|---|---|---|---|
| M-002 | Dual Channel Serial Injection with Front Cut Provides shorter cycle times by regenerating columns during next analytical run and diverts the solvent front to waste | Analyst with ICC-CE | * Trio VS * Gradient Pump * Regeneration pump | * Saving of regeneration time(Back Cut) * Increase throughput at little cost * Control is all within Analyst * Compliance is not affected * Avoids contaminating MS inlet with early eluting compounds and Solvent | * Can not do "Look Ahead" * Injections are not staggered * Peaks of interest must come of early * Columns may perform slightly differently on alternating samples | Yes |
For other cost/time saving measures consider:
- LEAP offers multiple choices of Valve Self Wash Stations to aid in cleaning the valve [8]
- Dual Channel Serial Injection (M-001) using Analyst and ICC-CE [9]
- Dual Channel Parallel Injection (M-003) using Cycle Composer Software and Analyst [10]
- “Look Ahead”, sample prep before injection (M-004) using LEAP Shell Software [11]
- Dual Channel Parallel Injection (M-005) using LEAP Shell software [12]
- Summary of LC Multi Valve Applications [13]
- LEAP Shell Software and application for custom injections and scheduling [14]
Contact LEAP
For additional information about this technique please contact LEAP Technologies for detailed information
