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Automated pH Measurement

Why Automating pH Measurement is Important

Automation of pH allows for a more consistent recording of measurements undertaken. However, it is important that the automation instrument has the means to accurately control the precision of the pH test been performed. Stirrer speeds, the type of stirrer used, electrode washing and pH meter settings all play a key role in accuracy and precision of any soil or water pH test. Studies have found that automated pH measurement is far more accurate than a manual measurement as the manual method usually involves using the pH electrode to stir the medium. This results in loss of sensitivity on the pH electrode junction (glass bulb) as the abrasive nature of the stirring in this manner slowly wears away the thin wall of the glass bulb. (more…)

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pH Conductivity Acid-Base Titration blog

Automated pH Conductivity & Acid-Base Titration Methodology

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labfit products

Labfit Product Range

Below is a quick overview of some of our products. If you don’t find what your are looking we do offer customization services to fully build a system that is unique to your business.

Carbon Sulphur Analysers

Combustion Analyser

Carbon Sulphur Combustion Analyser for Organic Materials

Carbon Sulphur Analysis by combustion for organic materials such as Mineral Ores, Coal, Coking Coal, Soils, Plants, Cements and many more.

Carbon Sulfur Analyser

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Automated Carbon Sulfur Analyzer with vertical combustion furnace, advanced detection system and 48 position auto-sampler.

Dispensing Systems

Multi Channel Dispensing

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Fast dispensing of multiple solutions has never been easier. The Hydra dispenser up to 4 different solutions at a time.

Water Dispensing

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Dispense waters and light duty acids or alkalis with the WD3000. The system dispenses to 8 or 10 positions at a time, making sample preparation more efficient.

Automated pH & Conductivity Robots

Single pH & EC

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Single sample system designed to analyse 1 sample at a time. System has 3 trays holding up to 180 samples.

Dual pH Lime Buffering Capacity for soils

Soil-buffer-ph-robot-electrodes

Perform analysis on 2 samples at the same time. System automatically adds reagent to sample during analysis.

4 pH Electrode

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Multi-electrode system analyses 4 samples at once to provide maximum sample throughput.

Single Tray pH & EC

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With a small form factor, this system system will fit onto any bench and accommodates up to 60 samples.

Automated Acid-Base Titration Instruments

Acid-Base Titrator

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Perform Acid and Base Titration with our automated solution that accommodates up to 180 samples.

Dual Acid-Base Titrator

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Ask us today about the dual titration system that analyses 2 samples at the same time for higher throughput.

Automated Weighing Instruments

Suspended Solids

Precision Weighing for Automated Suspended Solids analysis

Automated precision autoweigh for suspended solids in environmental samples with 120 sample capacity and 0.01mg resolution.

Total Dissolved Solids

Autoweigh-Total-Dissolved-Solids-Testing

Automated weighing for Total Dissolved Solids (TDS) of drinking water, wastewater, agricultural runoff, sewage, river and stream water.

Organic Matter

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This automated weighing system accommodates up to 80 samples and automatically records all weight losses according to the method.

LOI and TGA

Weigh-station-balances

Easily capture your default weights for TGA or Loss on Ignition systems. All weights are captured and exported to CSV or LIMS.

Robotic LOI

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Automated 4 stage Loss on Ignition by robot for high volume production samples. Efficient processing of samples in batches of 40, with a 4 stage LOI result typically under 30 minutes. That’s a result every 1.3 seconds.

Weighing Enclosures

Solotec Scientific Balance Enclosures

Place your precision weighing balance into our weighing enclosure to prevent outside influences such as air currents from influencing your weight recordings.

Accessories

pH EC Robot Trolley

AS3000 series trolley

Place your pH Conductivity or Titration system onto this trolley to easily maneuver the robot about your laboratory. Comes with convenient drawer and shelf.

Syringe Pump Module

Labfit-sp48000-dual-syringe-pump

Expand your AS3000 system’s capability by adding a syringe pump to automatically add reagents to your samples.

228l Desiccator Cabinet

Dessicator Caninet 228L

Place your samples, certified refence materials or any thing that needs to be kept free from moisture into this configurable desiccator cabinet.

Desiccator Trolley

150-108-Desiccator-Trolley1000

Easily move your 228l desiccator cabinet about the lab with this lockable trolley that is easy to maneuver.

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pH EC and Titration Systems

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Soil-buffer-ph-robot-electrodes
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as3020-ph-and-conductivity-analyser-single-tray

Single pH & EC

Single sample system designed to analyse 1 sample at a time. System has 3 trays holding up to 180 samples.

Dual pH Lime Buffering Capacity for soils

Perform analysis on 2 samples at the same time. System automatically adds reagent to sample during analysis.

4 pH Electrode

Multi-electrode system analyses 4 samples at once to provide maximum sample throughput.

Single Tray pH & EC

With a small form factor, this system system will fit onto any bench and accommodates up to 60 samples.

Titration

TITRATION-PLOT-at-1-INTITAL-PH-DOSE
1ppm-200ppm-dual-0.05-5g-1

Acid Base Titration

Perform Acid and Base Titration with our automated solution that accommodates up to 180 samples.

Dual Titration Systems

Ask us today about the dual titration system that analyses 2 samples at the same time for higher throughput.

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as3000q-multi-ph-soil-testing-robot-min

Automated AS3000Q Multi Electrode pH Robot

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The Labfit Automated AS3000Q multi-electrode pH robot enables you to keep on top of ever increasing sample throughput demands. If you are uncertain that your current testing procedures adequately comply to the stringent requirements of todays soil testing standards, then look no further. The Labfit Automated AS3000Q multi electrode soil pH robots utilises tried and proven hardware and software so that all samples comply with precision and accuracy only a fully automated robotic system can provide.

as3000q-multi-ph-soil-testing-robot-electrodes-min

4 pH Electrodes for Faster Throughput

The AS3000Q Automated Soil ph Robot is a multi electrode system that reads 4 pH electrodes simultaneously! Because the system adheres to your method configuration parameters there is no compromise on sample quality or accuracy. What about electrode failure you ask? Well the system is clever enough to inform the operator which electrode has finally succumbed to age and it is now faulty. Reading of a typical pH electrode is fast, with a typical soil stability of <0.03 pH taking less than 20 seconds to stabilise.

AS3000-Throughput-Graph

Precise, Accurate Results – Every time

The AS3000Q Automated pH soil testing robot tests more than 2000 samples per day while maintaining sample accuracy and precision.

  • Accuracy 0.01pH
  • Throughput >2000 samples per day
  • Accommodates 180 samples
  • ROI achieved very fast
  • Reliable stable system

Accessories for Automated pH robot Soil Testing

Syringe Pumps for Buffers/Titrants/Reagents

Our automated pH robots can be accessorised with automated syringe pumps that will automatically add buffer or a reagent to the samples that only require it according to the method. This means that no unnecessary usage of expensive reagents are wasted, no additional hazardous waste disposal costs and operators are safely removed from chemicals thus ensuring operator health and safety.

  • Efficient use of Reagents / buffers
  • Reduced disposal costs
  • Accurate dispensing
  • No manual addition – extra process
Labfit-sp48000-dual-syringe-pump
AS3000 series trolley

Trolley for Ease of Access

Why not place your automated pH robot onto a versatile trolley whereby you can easily wheel around the lab. Our trolley is made for the AS3000 systems and have a drawer for the meter, keyboard, mouse and any other item you wish to store out of the way. With the trolley, your bench space can be freed up for other equipment or lab productivity areas.

Get More Information Now!

We would love to hear from you. Please fill out the form so we can better help you select the correct product and option for your requirements.

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Labfit-AS3010-soil-ph-robot

AS3010 Robotic pH determines Soil Lime Buffering Capacity

Labfit-AS3010-soil-ph-robot

The Labfit AS3010 Robotic pH Lime Buffer Capacity Analyser was especially developed to automate a new agricultural soil titration method for determining the soil’s lime buffering capacity. This new method aids in the process to accurately determine the pH in acidic soil types and uses a new Sodium Hydroxide buffer which is far cheaper than the traditional SMP or Adams/Evans soil buffer available today.

Buffers for determining a soil’s lime requirement (LR) sometimes contain hazardous chemicals. To avoid the use of hazardous chemicals, Labfit and the  University of Georgia (UGA) developed and implemented a single addition titration with calcium hydroxide to determine the LR of soils. The soil pH buffering capacity is calculated from the rise in pH following 30 minutes equilibration from the single addition of calcium hydroxide. The LR is calculated from the soil pH buffering capacity, the target pH, and the initial soil pH.

Soil-buffer-ph-robot-electrodes

Automatic Soil Buffer pH

The AS3010 Robotic Soil Lime Buffer pH Analyser automatically buffers and homogenizes the soil sample based on analysis settings configured within the method. As the soil pH is measured, any soil sample that meets the buffer pH requirements is flagged for re-reading of the buffer pH measurement. The system includes a “phantom” rack to keep the dual pH electrodes “wet” on the last rack while a buffer is being added and stirred into the soil. This allows you to easily define where your quality control or standard solutions are within the system with upper and lower controls, stability controls and other various analytical controls so you can be sure your results are accurate and reliable.

Soil Buffer pH Automated Measurement Features

The AS3010 Robotic Soil Lime Buffer pH Analyser includes independent buffer pH controls over the normal “Water” pH measurement controls. As pH electrodes tend to measure buffered soils more quickly than unbuffered soils, you can configure the buffer pH analysis for speed while still maintaining your accuracy. When the AS3010 Robotic Soil pH Analyser determines that a buffer is required for a sample, it adds it to the sample while stirring in the buffer solution. This feature significantly enhances the homogenization process and allows for the sample to react more readily with the buffer solution. The system can be instructed to “Auto-Re-Measure” at the end of the run.

The system will then, at the end of the run, begin the “Buffer pH” analysis automatically and measure only soil samples that have had buffer added to them. The AS3010 Robotic Soil Lime Buffer pH Anlayzer has a capacity of up to 180 samples. At the end of the day you can add an extra 180 samples before going home and let the pH analyzer perform the soil pH analysis, ready for the morning. The system includes independent stirrer speed controls that are controlled by the method. This allows you to set a desired stirring speed for either the water pH or buffer pH measurement.

PH-EC-ROBOT-SOFTWARE-MEASUREMENTS-WATER-500-500-min

Accessories for AS3000 Soil Testing

Labfit-sp48000-dual-syringe-pump

Syringe Pumps for Buffers/Titrants/Reagents

  • Independent Water pH & Buffer pH Measurements
  • Conditional Wash
  • Advanced Quality Controls
  • Automatic pH Electrode Calibration
  • Auto Re-Measure at end of run
  • Independent Stirrer Speed Control
  • Up to 180 Samples

Trolley for Ease of Access

Why not place your AS3000 pH and Conductivity testing robot onto a versatile trolley whereby you can easily wheel around the lab. Our trolley is made for the AS3000 systems and have a drawer for the meter, keyboard, mouse and any other item you wish to store out of the way. With the trolley, your bench space can be freed up for other equipment or lab productivity areas.

AS3000 series trolley

Get More Information Now!

We would love to hear from you. Please fill out the form so we can better help you select the correct product and option for your requirements.

Enquire Now

AS3010 Brochure

Download the latest AS3010 Product Brochure

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