What is DVS Endeavour? 

The DVS Endeavour is a high-performance gravimetric sorption analyzer developed by Surface Measurement Systems (SMS), capable of simultaneously analyzing up to five samples. 

While precisely controlling temperature and relative humidity, the DVS Endeavour measures sample mass changes in real time under water vapor and organic vapor environments to analyze sorption and desorption characteristics.

Equipped with five sample chambers and a specially configured UltraBalance system, the DVS Endeavour enables laboratories to measure mass changes from moisture and organic solvent sorption or desorption in real time, delivering detailed and accurate insights into organic vapor and water vapor sorption kinetics.

With flexible configuration options for diverse experimental conditions and accessories, the DVS Endeavour enables quantitative analysis of hygroscopicity, stability, and structural changes in a wide range of materials — including pharmaceuticals, polymers and materials, food science, cosmetics, and batteries and energy.

Applications 

Pharmaceuticals — Hydrate and solvate formation, stability testing, and amorphous content determination Battery Materials — Moisture sensitivity analysis of electrodes and electrolytes Food / Cosmetics — Shelf-life preservation, sorption stability, and water activity measurement Polymers / Films — Moisture permeability, diffusion rate analysis, and organic solvent interaction studies Construction / Wood — Sorption characterization of porous materials Environment / Energy — Moisture behavior studies of catalysts and sorbents 

Key Features 

• Simultaneous Analysis of Five Samples — Multi-sample processing maximizes research efficiency
• Ultra-Precision Balance (UltraBalance) — Resolution up to 0.01 µg
• Precise Mass Measurement — The patented UltraBalance system detects minute sample mass changes in real time, enabling accurate analysis of sorption characteristics
• Accurate Temperature and Humidity Control — 10 °C to 70 °C / 0–98% RH
• Organic Vapor Analysis Capability — Precise control based on the Speed of Sound Sensor
• Sample Pre-Treatment Support — Drying and activation up to 300 °C

01

Unrivaled High Throughput 

With five sample chambers, the DVS Endeavour delivers exceptional capacity, enabling simultaneous measurement of five samples. 

02

Organic Vapor and Water Vapor Sorption Kinetics Analysis 

By incorporating Surface Measurement Systems' patented Speed of Sound Sensor, the DVS Endeavour can analyze the sorption kinetics of both water vapor and organic vapors. 

03

True0 Drying at 0.0% Relative Humidity 

Surface Measurement Systems' DVS dynamic sorption instruments are the only type of equipment offering True0 Relative Humidity (RH), capable of reducing water partial pressure down to 0.0% RH. This capability is essential for studying hydrates and other compounds that only fully dehydrate below 1% RH, as well as sorption and desorption phenomena at low RH levels. 

04

Wide Temperature Range 

The DVS Endeavour is designed to measure water vapor and organic vapor sorption isotherms across temperatures ranging from 10 °C to 70 °C, while maintaining precise humidity control and accuracy. 

05

In-Situ Drying with the Sample Pre-Heater 

Using the modular sample pre-heater accessory, in-situ drying of samples at temperatures up to 200 °C is possible, significantly expanding the application scope and flexibility of experiments. 

06

Optional Color Video Microscopy  

By adding Color Video Microscopy, sample changes can be visualized in high-resolution imagery, adding precise visual information to reports and enhancing intuitive understanding of the data. 

Benefits 

· Simultaneous 5X sample measurement · Organic and Water vapor sorption kinetics · Organic vapor sorption in a fixed RH background
· Real-time partial pressure measurement and control · Water and organic vapor sorption isotherms from 10 to 70 °C
· In-situ drying of samples to 200 °C · Optional Color Video Microscopy · True O drying at 0.0% RH 

Applications 

· Batch-to-batch variation, 

· Water sorption isotherms & kinetics, 

· Amorphous content
· Hydrate/solvate formation 

· Polymorph identification 

· Diffusion and permeability 

Solvents 

· Acetone  · Chloroform · Cyclohexane · Decane · Dichloromethane · Dichloromethane · Ethanol
· Ethyl acetate · Ethyl benzene · Heptane · Hexane · Isopropanol · Methanol · Nonane
· Octane · Toluene · Water · M-Xylene · p-Xylene

Speed of Sound Sensor 

The speed of sound is an intrinsic physical property of the vapor or gas being measured, varying with temperature, gas/vapor concentration, and the type of gas or vapor. The Speed of Sound Sensor (SoS Sensor) built into the DVS Discovery is the only method capable of directly measuring vapor concentration using ultrasound. By measuring the speed of sound traveling through a fixed volume of solvent gas or vapor, this sensor precisely determines gas or vapor concentration in real time.