Automated Sample Storage Systems: A Buying Guide for Facility Managers

Executive buying summary

Automated sample storage systems, often referred to as automated storage and retrieval systems (AS/RS), are crucial for managing large volumes of samples in laboratories and medical centres. These systems minimise manual handling, improve sample tracking, and ensure consistent storage conditions. Key decision factors include sample volume, throughput requirements, environmental control needs, and integration with existing laboratory information management systems (LIMS). Total cost of ownership is influenced by energy consumption, maintenance schedules, and the longevity of components. A significant risk to avoid is selecting a system that doesn't adequately integrate with existing workflows and data management practices, leading to inefficiencies and potential errors.

• Automated sample storage systems significantly reduce the risk of human error in sample handling and retrieval.
• Selecting the appropriate system capacity is vital to avoid bottlenecks and ensure future scalability.
• Data integrity and traceability are paramount, requiring robust audit trails and secure access controls.
• Regular preventative maintenance is essential to maximise system uptime and extend its operational lifespan.
• Proper validation and qualification of the system are necessary to ensure compliance with relevant regulatory requirements.

Equipment types compared

Key features to look for

• Sample Tracking and Traceability: A robust system should provide complete chain of custody, including user identification, date/time stamps, and location history. Ask the supplier for details on the audit trail capabilities and how data is secured.
• Environmental Monitoring: Consistent temperature and humidity control are critical for sample integrity. Confirm the system’s monitoring capabilities and alarm systems for deviations from specified ranges.
• Data Integration with LIMS: Seamless integration with existing LIMS is essential for efficient workflow. Inquire about the system’s API and compatibility with your current LIMS.
• User Access Controls: Restricting access based on user roles and permissions is vital for security and compliance. Verify the system's authentication methods and access logging features.
• System Redundancy: Consider backup power supplies and redundant components to minimise downtime. Ask about the supplier’s approach to redundancy and disaster recovery.
• Maintenance and Serviceability: Regular maintenance is crucial for long-term reliability. Understand the maintenance schedule, service contract options, and availability of spare parts.
• Ergonomics and Accessibility: The system should be designed for ease of use and accessibility for all operators. Observe the user interface and consider the physical layout.
• Scalability: The system should be adaptable to future growth and changing sample volumes. Discuss the system’s modularity and expansion capabilities.

Pros and cons of each equipment type

Automated Frozen Sample Storage System

Pros:

• Maintains consistently low temperatures for long-term sample preservation.
• High storage capacity in a relatively small footprint.

Cons:

• Higher upfront cost compared to refrigerated systems.
• Requires specialised ventilation and potentially liquid nitrogen handling expertise.

Automated Refrigerated Sample Storage System

Pros:

• Suitable for samples requiring temperatures between 2°C and 8°C.
• Lower running costs compared to frozen storage.

Cons:

• Limited storage time for some sample types.
• Potential for temperature fluctuations impacting sample integrity.

Automated Liquid Nitrogen Sample Storage System

Pros:

• Provides the ultimate in long-term sample preservation.
• Suitable for a wide range of sample types.

Cons:

• Requires careful handling of liquid nitrogen.
• Higher operational complexity and safety considerations.

Manual Retrieval Carousel System

Pros:

• Lower initial investment compared to fully automated systems.
• Relatively simple to install and maintain.

Cons:

• Dependent on operator speed and efficiency.
• Higher risk of human error.

Robotic Sample Transport System

Pros:

• Reduces manual handling and improves throughput.
• Minimises the risk of sample damage during transport.

Cons:

• Requires careful integration with existing systems.
• Can be complex to maintain and troubleshoot.

Which facilities each type suits

• Automated Frozen Sample Storage System: Pharmaceutical research facilities, biobanks, and diagnostic laboratories handling biological samples requiring long-term preservation.
• Automated Refrigerated Sample Storage System: Clinical laboratories, hospitals, and research facilities storing samples requiring short to medium-term refrigeration.
• Automated Liquid Nitrogen Sample Storage System: Cryopreservation centres, research institutions, and specialist laboratories handling sensitive biological materials.
• Manual Retrieval Carousel System: Smaller laboratories with limited budgets and lower sample volumes.
• Robotic Sample Transport System: High-throughput laboratories and medical centres where automated sample delivery is essential for efficiency.

Buyer's checklist

1. Confirm site suitability, including power supply, ventilation, and floor loading capacity.
2. Verify compliance with relevant regulatory requirements, including UK MDR 2002 and the IVD regulations where applicable.
3. Establish a thorough validation plan, including installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ).
4. Arrange comprehensive training for all operators and maintenance personnel.
5. Negotiate a robust service and maintenance contract with clearly defined response times and preventative maintenance schedules.
6. Secure a supply of critical spare parts to minimise downtime.
7. Assess the system’s lifecycle cost, including energy consumption, maintenance, and potential upgrades.
8. Evaluate the supplier’s experience and reputation within the industry.
9. Define clear acceptance criteria and performance metrics.
10. Document all decisions and approvals throughout the procurement process.