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Significance of the topic

Wet chemical analysis remains a cornerstone technique across environmental monitoring, food and beverage quality control, process analytics and enzymology. However, traditional manual wet chemistry workflows are labour-intensive, expose analysts to reagents, generate substantial chemical waste and create bottlenecks for high-throughput testing. Modern discrete analyzer platforms address these limitations by providing automated, walkaway-capable systems that increase throughput, reduce reagent consumption and improve data traceability and reproducibility. Such advances support regulatory compliance, lower operating costs and enable laboratories to focus analyst time on interpretation and value-added tasks rather than routine pipetting and timing.

Objectives and overview

This brochure presents the Thermo Scientific Gallery and Gallery Plus discrete analyzers as solutions for faster, safer and more economical wet chemical analysis. Key objectives are to summarize instrument capabilities, workflow advantages, typical analytical applications (environmental, food & beverage, enzymatic assays) and the operational benefits in terms of throughput, reagent use, safety and compliance.

Methodology

Both Gallery systems implement discrete photometric analysis in individual, disposable cells combined optionally with electrochemical measurement for pH and conductivity. The platform automates sample and reagent handling, precise micro- to milliliter-volume dispensing, incubation and measurement across a spectral range (340–880 nm with selectable filter sets). Unique features include simultaneous multi-analyte measurement in discrete cuvettes, mid-run sample loading for the next cycle, and parallel electrochemical/photometric workflows when the optional ECM module is installed. Automation reduces manual interventions and timing errors, while barcode-driven sample and reagent tracking ensures traceability and LIMS integration.

Used instrumentation

• Thermo Scientific Gallery discrete analyzer (benchtop)
• Thermo Scientific Gallery Plus discrete analyzer (higher-capacity benchtop variant)
• Optional electrochemical measurement (ECM) module for parallel pH and conductivity assays
• Long-life Xenon flash lamp light source
• Disposable cuvettes/cells and ready-to-use reagent cartridges
• Integrated barcode reader and bi-directional LIMS connectivity

Main results and discussion

The Gallery platforms deliver the following performance and workflow improvements compared with manual and continuous-flow methods:

• Throughput: up to 200 photometric tests per hour on Gallery and up to 350 tests per hour on Gallery Plus.
• Parallel analyses: up to 67 pH/conductivity measurements in parallel (ECM option) and up to 60 electrochemical tests simultaneous with photometry.
• Capacity: up to 108 samples and 42 reagent positions (Gallery Plus) with continuous access to samples and reagents without interrupting runs.
• Reduced reagent and waste volumes: µL-scale sample volumes and mL-scale reagents — claimed reductions of up to ~50× reagent use versus continuous-flow analysis and ~15× versus manual methods.
• Operational efficiency: automated start-up/shutdown, minimal warm-up time, walkaway periods up to 2–3 hours, and fast maintenance procedures.
• Data integrity and compliance: U.S. EPA-compliant software, barcode-based traceability and LIMS transfer for audit-ready records.

These capabilities translate into lower cost per analysis, fewer operator hours, decreased chemical exposure and improved reproducibility driven by precise reagent recipes and automated timing. The ability to add samples mid-cycle and use disposable cells eliminates carryover risk and reduces cross-contamination compared with open or continuous systems.

Benefits and practical applications

Practical benefits for routine and regulated laboratories include:

• Safety: ready-to-use reagents and minimal manual handling reduce analyst exposure to hazardous chemicals.
• Scalability: two instrument sizes let labs choose capacity aligned to workload (Gallery vs Gallery Plus).
• Versatility: validated methods for environmental monitoring (drinking water, wastewater, groundwater), food and beverage testing (brewing, wine, dairy), enzyme and detergent assays, and process-critical parameters.
• Traceability: barcode scanning and automatic data transfer support QA/QC and regulatory reporting.
• Cost reduction: lower reagent consumption, reduced waste disposal and minimized operator time reduce total operating costs and cost per test.

Representative analytes supported span organic acids, anions (fluoride, chloride, nitrate, sulfate), nutrients (ammonia, TKN, TON), metals (total iron, Cr(VI), Zn, Cu), sugars, ethanol, color, alkalinity, hardness, cyanide, and many food/wine/beer-specific parameters. Third-party reagents are supported for some assays.

Future trends and potential uses

Discrete analyzers like Gallery are positioned to evolve along several directions:

• Greater digital integration: expanded LIMS interoperability, cloud-enabled data review and remote monitoring for distributed laboratory networks.
• Method expansion and reagent miniaturization: new enzymatic and colorimetric assays and greener reagent formulations to minimize environmental footprint.
• Enhanced electrochemical sensing: broader ECM modules (ion-selective sensors, dissolved oxygen) to expand direct measurement capabilities without extra sample prep.
• Sample preparation automation: upstream automation (filtration, dilution, digestion modules) to deliver true end-to-end workflow automation for complex matrices.
• Standardization and regulatory adoption: more method standardization and increased use of discrete systems for compliance testing as instrument validation grows.

Conclusion

The Thermo Scientific Gallery and Gallery Plus discrete analyzers provide a compelling modernization path for laboratories performing routine wet chemical assays. By combining high throughput, automated workflows, reduced reagent consumption, safety improvements and regulatory-compliant software, these platforms reduce operating costs and free analyst time for higher-value tasks. Their modularity and range of validated methods make them suitable across environmental, food & beverage and industrial process-testing contexts. Future enhancements in connectivity, reagent chemistry and upstream automation will further increase their value in regulated and high-throughput laboratories.

Reference

• Thermo Fisher Scientific. Thermo Scientific Gallery and Gallery Plus Discrete Analyzers: Product brochure and technical overview (2022).
• Regulatory and standards bodies referenced: United States Environmental Protection Agency (U.S. EPA); International Organization for Standardization (ISO); Association of Official Analytical Collaboration (AOAC); American Society of Brewing Chemists (ASBC); International Organization of Vine and Wine (OIV); International Dairy Federation (IDF); American Society for Testing and Materials (ASTM); Deutsches Institut f5c r Normung (DIN).