The Avanti BDS range was developed to meet the need for a range of base deactivated reversed phases based on a Type B silica which are less retentive than the standard 80 and 100 ranges and provide a closer match to current established commercial BDS 120 - 150Å media. C18, C8 and CN phases are available in industry standard 3 and 5 μm particle sizes and are fully end capped.