The NXTbps (Buffer Preparation System) is a transformative approach designed to address the challenges of buffer management in modern biomanufacturing, which is often acknowledged as one of the most resource-intensive activities. As manufacturing capacity increases, facilities face pressure to scale up without expanding their physical footprint or prolonging preparation timelines. Embracing automated, multi-pump inline buffer preparation streamlines the process, leading to substantial savings in facility footprint and optimizing resource utilization. By enabling precise control over buffer composition and reducing manual intervention, the integration of NXTbps enhances overall process efficiency and allows manufacturers to maximize productivity within existing infrastructure.
The system’s operational success relies on the effective control of buffer pH, which hinges on optimizing buffer capacity and pump flow rate. The design meticulously aligns with the buffer system’s pka, ensuring precise measurement and delivery of individual buffer components by the system pumps.
The system offers three primary operational modes for pH control:
The NXTbps system utilizes automated, just-in-time (JIT) at point-of-use (POU) solutions to streamline buffer preparation, which optimizes space utilization and enhances operational workflows compared to traditional methods.
It features Buffer Preparation as the core mechanism, which is resilient to components with low solubility, ensuring the final buffer’s integrity and consistency. Dynamic control mechanisms within the system account for the common ion effect, which helps maintain buffer stability and ensures consistent performance.
The NXTbps solution is key to modernizing biomanufacturing practices by supporting:
To achieve stringent pH specifications, which are typically within ±0.05 pH units, the NXTbps system is required to operate in the pH + Flow + Conductivity Control Mode. This advanced control mode leverages combined pH monitoring, flow rate regulation, and conductivity control to achieve the precise pH control necessary for compliance with exacting quality standards and regulatory requirements.
While the NXTbps is designed with features like Low Hold-up to enhance CIP:
Features all stainless-steel construction.
Designed with low hold-up/no dead legs, optimized pipe sizing, minimized pipe lengths, and straight through flow design.
Engineered to be space-efficient.
Utilizes engineered modular Gemu block valves and Optek Instrumentation.
Enhances CIP (Cleaning-in-Place) and helps maintain column resolution.
Built on Siemens Hardware for automation, with DCS integration available.
Includes 5 self-priming pumps for buffer preparation.
| Description | Specifications |
| Piping ID | 1/2 Inch (Half Inch), SS316L (1.4404) |
| Maximum Operating Flow Rate | 600 LPH (Overall)
Acid and Base Pump: 150LPHWFI, Salt and Sample Pump: 600 LPH |
| Minimum Operating Flow Rate | 15 LPH (Overall) Buffer Preparation:
30LPH |
| Control Mode | pH + Conductivity + Flow Control Mode |
| Pump | 5 Nos, Quatraflow (QF150S &QF1200S) |
| pH Monitor & Sensor | 3 Nos, Mettler Toledo / Optek / E&H Conducta |
| Conductivity Monitor and Sensor | 3 Nos, Mettler Toledo / Optek / E&H Conducta |
| Flow Meter | 5 Nos, Mass, E&H / Emerson (Rosemount) |
| Pressure Sensor | 3 Nos, Flush, E&H / Keller |
| UV | 1 No, Duel Wavelength, Optek / E&H Conducta |
| Temperature Sensor | Integrated into a conductivity sensor |
| Maximum Operating Pressure | 4 barg (at ambient Temperature) |
| Air Sensor | 2 (Pre-Column) |
| Number of Inlets | 2 Inlets per pump (Configurable) |
| Number of Outlets | 4 Inlets per pump (Configurable) |
| Column Connections | 1 |
| Number of Filters | 1 (configurable to 2)
Single-Use Capsules or Filter Housing |
| Static Mixers | 1 (configurable to 2),
GMP Static Mixer, KoFlo |
| Heat Exchanger | Not included (but can be included if the temperature needs to be maintained) |
| Automated CIP | Not Included (Can be made available with 4 inlet Block Valves) |
| SIP | Can be made available |
| ATEX | Can be made available |
| Protection Class | |
| Electrical Cabinet | IP 56 |
| Field-Mounted Instruments | > IP55 |
| Field-Mounted Motors | > IP55 |
| Power Requirements | |
| Main Power (Electrical Panel) | L-N-PE, 230V AC, 50-60Hz |
| Raw Power (Pump) | L1-L2-L3-N-PE, 3 x 400V AC, 50-60hz |
| Pneumatic Requirement | |
| Instrument Air | 6-10 bar g |
| Media and Feed Pressure | |
| Inlets | < 0.2 bar g |
| Outlets | < 1 bar g |
| Material | |
| USP Class VI | Yes |
| 21 CFR Part 177 | Yes |
| Animal Origin Free | Yes |
| Environmental Range | |
| Environment Temperature | 4 to 30 Deg C |
| Process Temperature | 4 to 30 Deg C |
| Automation | |
| Automation Platform | Siemens |
| Operating System | WinCC 7.4 based on Windows 10 |
| PLC | Siemens S7-1500 |
| PLC | 19” Flat Panel with Remote CPU |