Applications of the GERDA include:

• Assaying drill core in core boxes: Direct analysis on-site without the need for extensive sample transportation.
• Assaying stream sediment/soil samples in field bags: Quick and efficient field analysis of collected samples.
• Assaying RAB, RC drilling chip samples: Ensuring accurate and immediate data collection during drilling operations.
• Determination of gold mineralization in crushed rock/drill core samples utilizing NEFFA method: Specialized analysis for gold detection.
• Assaying any 2D flat objects: Such as paintings and other flat materials, providing broad application beyond geology.

GERDA Features:

• CNC 1500×1000 mm table WorkBee: Provides a stable and precise platform for sample analysis.
• High-resolution USB camera Baumer VCXU 65C.R (optional): Allows for detailed visual documentation of samples.
• Control Unit based on Raspberry Pi3: Ensures efficient operation and control of the system.
• Browser-based software: Accessible via a Control Panel simulator, enabling remote operation and monitoring.
• Mounting options: Can be mounted on Palsatech or CoreLift tables, enhancing flexibility and usability.
• Remote control capability via VPN: Allows for remote operation and data management, increasing operational efficiency.

GERDA – An Automated Solution:

The GERDA is an automated solution for portable analytical instruments such as pXRF, spectrometers, NIR spectrometers, and more. This CNC-based universal sampler can be used for assaying:

• Drill core in original boxes: Directly analyze core samples on-site.
• Soil/sediment samples in field bags: Efficient field analysis of collected soil and sediment samples.
• RAB/RC/Blasthole chip rock samples: Accurate and immediate data collection for drilling operations.

Compatible Equipment:

• XRF analyzers: Supports the portable XRF analyzer Elvatech models of ProSpector 3 and ProSpector 2 series, with sales and agreements handled in coordination with the customer.
• NIR spectrometers: Another optional analytical tool for enhanced geochemical analysis.
• LIBS analyzers: For advanced elemental analysis.

Provided by MEFFA Lab Oy:

• Development and Design: MEFFA Lab Oy is responsible for the creation and design of the GERDA.
• Production and Sales: They handle the manufacturing and sales of GERDA units.
• Installation and Training: MEFFA Lab Oy installs the GERDA units at customer sites and provides training to ensure effective use.
• Technical Support and Warranty: Comprehensive support and warranty services to maintain optimal performance.

Advantages Over Other Systems:

While many manually operated pXRF test stand products exist, they often share common design flaws and operational limitations, such as the need to load one sample cup at a time and issues with sample handling. The GERDA, specifically designed and developed by MEFFA Lab Oy and utilizing the Elvatech ProSpector 3, addresses these limitations by offering a more efficient and automated solution.

Advantages of the GERDA:

• Completely non-destructive: Ensures sample integrity.
• Fast real-time results: Immediate data availability.
• Portable and easily transported: Ideal for on-site analysis.
• Minimum set-up and calibration required: User-friendly and efficient.
• Qualitative and/or quantitative multi-element analysis: Versatile application.
• Wide range of applications: Suitable for various types of samples.
• Export data in different formats: Facilitates data management and reporting.

Disadvantages of the GERDA:

• Difficult to detect elements lighter than Magnesium (Z=12): Limitation in detecting very light elements.
• Minimum detection limits in the ppm range: Not suitable for ppb level detection, which is critical for certain elements like gold.
• Surface/near-surface technique: Primarily analyzes the surface layer of samples.
• Sample handling considerations: Requires careful sample preparation to avoid contamination.

By using the GERDA and the Elvatech ProSpector 3, users can ensure high-quality, efficient, and accurate geochemical analysis, enhancing productivity and reliability in mineral exploration and other applications.