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GT90 Fully Automatic Potential Titrator with Automatic Sampler for Mass Determination

1.4-channel fluid-addition module, standard 16 stations, optional 20/34/40 stations rotary type automatic sampler can be added.
2.Four liquid adding module units, burettes and pipelines all can be acid-proof, alkali-proof and corrosion resistance.
3.Imported corrosion-resistant PTFE rotating valve, PTFE corrosion-resistant burette, high-power mixing table, using the coil to achieve magnetic mixing.
4.High-precision closed-loop control, ensuring accurate titrating.
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Understanding the GT90


The GT90 Fully Automatic Potential Titrator is a comprehensive titration analysis solution, engineered to deliver unparalleled precision and automation for laboratories worldwide. Integrating a 4-channel fluid-addition module, corrosion-resistant components, and intelligent software, this instrument streamlines the entire titration process—from sample handling to data reporting. Designed for mass determination, the GT90 supports up to 40 sample stations (optional) and complies with FDA, GMP, and GLP regulations, making it suitable for pharmaceutical, petrochemical, and academic research. Whether performing acid-base titration or non-aqueous titration, the GT90 titrator eliminates human error, saves time, and ensures reliable results for even the most complex samples.


Core Features


Ultra-High Precision Titrant Delivery

The GT90 features PTFE corrosion-resistant burettes (1mL/5mL/10mL/25mL/50mL options) with a resolution of 1/48,000, enabling titrant dispensing accuracy of 0.001mL. Imported micro-injection pumps and closed-loop control ensure smooth, consistent flow even at low rates, critical for detecting endpoints in samples with low analyte concentrations. High-sensitivity imported microscale detection electrodes provide accurate pH (±0.003pH) and mV (±0.1mV ±0.03%) measurements, laying the foundation for precise titration results.


Automated Method Execution & Sampling

Equipped with a standard 16-station rotary automatic sampler (optional 20/34/40 stations), the GT90 handles high-throughput mass sample analysis without constant operator supervision. Once programmed, it automates sample addition, titrant dispensing, stirring, and data acquisition. The built-in self-check function verifies instrument status on power-on, ensuring operational reliability and minimizing downtime.


Advanced Data Analysis & Compliance

The GT90’s intuitive software offers powerful data analysis tools, including equivalence point calculation, statistical analysis (average, max, min), and custom formula editing. It supports audit tracking, hierarchical user management, and electronic signature functions, fully meeting GMP/GLP/FDA requirements for data traceability. Data can be exported via USB, Ethernet, or 232 serial port, and integrated with laboratory information management systems (LIMS) for seamless workflow optimization.


Versatile Titration Modes & Compatibility

The instrument supports multiple titration types: acid-base titration, redox titration, precipitation, complexation, and non-water titration. It is compatible with balances, densitometers, and other lab equipment via USB/Ethernet, enabling automatic data transfer for integrated analysis. The roof-type spiral stirrer or magnetic stirring ensures thorough sample mixing, even for high-viscosity or turbid samples that require special handling.


Typical Uses


Biochemical Analysis

In biochemical research, the GT90 determines the isoelectric point of proteins and measures enzyme concentrations via specific reagent titration. Its precision ensures accurate characterization of biomolecules, supporting studies on protein behavior and enzyme activity in various environments.


Petrochemical Analysis

For the petrochemical industry, the titrator analyzes crude oil, gasoline, diesel, and lubricants to determine acid number, base number, and other critical chemical properties. These measurements evaluate product quality, ensure compatibility with engines and equipment, and support regulatory compliance.


Electroplating Industry

The GT90 measures metal ion concentrations in plating solutions, a critical step in controlling the electroplating process and ensuring consistent plated product quality. Its corrosion-resistant design safely handles harsh plating chemicals, reducing waste and optimizing production efficiency.


Academic Research

Research labs rely on the GT90 for fundamental and applied chemistry studies, thanks to its flexible titration modes and high precision. It supports non-aqueous titration (with parameter adjustments for low-temperature conditions) and complex sample pretreatment (ultrasonic dissolution, centrifugal filtration), making it suitable for diverse research projects.


Measuring range

-2000.0MV~+2000.0MV
-20.000PH~+20.000PH

Measurement resolution

Resolution 0.1MV, precision 0.1 mV ± 0.03%

pH measure

Resolution 0.001pH, precision 0.003pH

Titrating volume accuracy

0.001mL

Measurement mode

MEAS: Measuring pH/mV/T

CAL: pH correction (multi-point)

SET setting end-point mode

MET equivalent titrating

DET dynamic titrating

Titrating mode

Acid-base titration, redox titration, precipitation, complexation, non-water titration

Titrating cup capacity

250mL

Temperature measurement range

-20~135℃

Temperature resolution

0.01℃

Temperature measurement accuracy

±0.1℃

Communication mode

2 USB, 232 serial port, Ethernet

Fluid adding unit

Built-in liquid-adding unit

Liquid-adding module unit

(Standard) contains 4 sets of built-in titration liquid-adding channels.

Number of extensible liquid-adding channels

8 channels

Burette model

1ml 5ml 10ml 25ml 50ml (10ml standard)

Resolution of Burette

1/48,000

Time of replenishing liquid

10 seconds (100% filling speed)

Control unit

PC including software (optional computer)

Automatic sampler

It can be used with GT robot injection system for mass sample analysis with 16 stations (standard 150ml).

Self checking function

Power-on to automatically check the instrument status.

Calibration function

Yes

Apply editing function

Edit computing formula, directly figure out result.

Storage space

More than 300G

Preset method

More than 300G

In accordance with FDA, GMP, and GLP

Audit tracking, hierarchical management, and electronic signature.

Pipelines

PTFE titration pipelines (corrosion resistant)

Stirring method

Roof type spiral stirrer or magnetic stirring.

PTFE valve

Imported corrosion-resistant rotary valve

Microscale detection electrodes

Imported

Micro-injection pump

Imported


Titrator


FAQ


What titration modes does the GT90 support?

The GT90 covers five key titration modes: acid-base, redox, precipitation, complexation, and non-water titration, addressing the needs of most analytical applications.


How many sample stations can the GT90 handle?

It comes with a standard 16-station automatic sampler. Optional upgrades include 20, 34, or 40 stations to accommodate high-throughput mass sample analysis.


Is the GT90 compliant with GMP/GLP regulations?

Yes. It features multi-level user permission management, audit tracking (with time stamps, operator IDs, and parameter changes), and electronic signature functions, fully meeting GMP/GLP/FDA requirements for data integrity.


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