Triple Plate MICROVAP Nitrogen Evaporator

Importance of the Topic

The concentration of samples in microplates is a critical step in many analytical workflows, including high-throughput screening, drug discovery, and environmental testing. Reliable and uniform evaporation enhances reproducibility, reduces sample loss, and accelerates downstream analyses.

Objectives and Overview

This document describes the design and functionality of the Triple Plate MICROVAP Nitrogen Evaporator (Cat# 11803). The primary goal is to demonstrate how this instrument simultaneously processes three 96-well plates, offering consistent heating and controlled nitrogen blowdown to achieve rapid and uniform solvent removal.

Methodology

The system employs a solid aluminum dry block heater to maintain precise temperatures between 40 and 130 °C with a digital controller (±2 °C accuracy). Nitrogen gas is delivered through a triple 8×12 manifold array of stainless steel needles (2.0 in × 19 ga) at up to 100 LPM per flow meter. Toggle switches on each manifold allow selective gas flow, while independent heating toggles conserve energy.

Used Instrumentation

Core instrument:

• Triple Plate MICROVAP Nitrogen Evaporator, Cat# 11803
• Dry block heater module (Model 54243, 540 W)
• Spring-assisted hoist assembly for easy manifold lifting
• Adjustable flow meters and stainless steel needles

Optional enhancements:

• 220 V wiring harness (Option ‑2)
• Positive-pressure purge case (Option ‑Z)
• Acid-resistant coating on body and needles (Option ‑RT)

Key Results and Discussion

Uniform temperature distribution across three plates ensures equal evaporation rates in each well, whether using standard or deep-well formats. The adjustable gas flow (0–100 LPM) and individual plate controls allow fine-tuning for diverse solvent systems. Users report significant time savings compared to single-plate evaporators and improved sample integrity due to gentle heating and precise nitrogen delivery.

Benefits and Practical Applications

This evaporator enhances productivity in laboratories processing multiple plates, reduces solvent residues, and preserves analyte stability. Energy savings are achieved through selective activation of heat blocks and nitrogen manifolds only where needed. The modular design accommodates standard workflows in pharmaceutical R&D, environmental analysis, and quality control testing.

Future Trends and Potential Applications

Advancements may include integrated automation for plate handling, real-time moisture sensors, and software-controlled protocols. Coupling with downstream detectors or robotic systems will further streamline high-throughput workflows. Sustainable designs with gas recapture or alternative drying methods are anticipated to reduce environmental impact.

Conclusion

The Triple Plate MICROVAP Nitrogen Evaporator provides a robust solution for parallel evaporation of multiple microplates, combining precise temperature control, uniform nitrogen delivery, and energy-efficient operation. Its flexibility and performance make it a valuable tool in modern analytical laboratories.