Automated Environmental Titration Systems

The Mantech MT Series of titration systems feature task orientated automation

Multi parameter testing systems with full end to end automation

Try Before You Buy
MT systems are available for on-line demonstrations

Pipette Tips

Unique pipette tips may be required depending on application and user preference.

• Extensive cleaning procedures
  
• Proximity sensor to confirm pipette tip has been picked up/ejected
  
• Accommodates 1mL, 5mL, and 10mL pipette tips

Multiple racks

MT100

Automated Capacity: 18 – 720
Mantech Pro Software
DualProbe
IntelliRinse: Dynamic
SampleProtect
Temperature Compensation: Automated with thermistor
PeCOD Analyzer Add-On: 15min COD and NOM
BOD 5 Day DUO Add-On
2 Or More Titration Methods: From a single sample cup
Sample Cup Size: 15mL, 50mL & 125mL
Customer-Supplied Vessels
RapidDuo: e.g. alkalinity and hardness in 2 different vessels
TitraSip Gen2
Automated Pipetting
Burette
Parameters: Acidity, alkalinity, ammonia, chloride, colour, conductivity, fluoride, nitrate, oxidation-reduction potential (ORP), oxygen, pH, salinity, temperature, total hardness, turbidity

Automated Heaters

For analysis that requires heated water samples, there is a heater option for the MT Series. This options delivers precise temperature and process control. Analysts easily control and maintain the desired temperature and heating duration. They can also program the heater to turn on and off at specific times during the test run. The heater can be used to heat water samples for tests including hot acidity, permanganate index (or oxidizability), and more. For testing requiring high heat, automated capping and uncapping is available to prevent evaporation loss of samples. Additionally, these caps are made of inert teflon, to protect against aggressive reagents and samples.

Heater on AM500 system, with sample protect

Automated Shakers

Analyses that require shaking benefit from automated sample handling. Automated shaking of samples eliminates the manual transfer of samples to a separate shaking machine. Shaker racks can be mounted on MT Series autosamplers, for tests like neutralization potential, soil pH and conductivity (EC), and acid rock drainage (ARD). Shakers can also be used for sample splitting, automatically shaking racks prepared from parent bottles. Mantech can mount multiple shakers to meet specified throughput requirements. With fixed position control, the shaker keeps tubes correctly aligned after shaking, so the autosampler can perform sample splitting or analysis accurately.

Mantech Pro Software fully integrates shaker racks and provides a user-friendly, customizable interface. The software automatically controls shaker operation during the run. Meanwhile, users adjust and control the speed and duration of the shaking. Depending on the method, the system either continues analysis after the shaking period, or ends the run with an automatically generated report. Built for Windows 11, Mantech Pro Software even allows users to perform actions while the system is running. For example, shaker racks play a key role in soil analysis. Mantech’s IntelliRinse technology also ensures probes are rinsed clean before moving to the next sample. Users can set cleaning criteria in the software. After the final sample is analyzed, the shaker turns on. Users can also program QC checks from dedicated spots in the calibration station at the beginning, end, and at set intervals throughout the run. Furthermore, automated shakers can be used to mix tubes that do not have room for a stirrer inside them. Using the software, analysts are in direct control of the shaking speed for optimal results. The automated heaters and shakers for the MT series allow laboratories to streamline their workflows by improving accuracy and free up analysts’ time. With full software control labs can customize heating or shaking processes to meet specific method requirements. By adopting these automated capacities, laboratories can gain efficiency without compromising precision.

New kind of shaker on an AM500 system, with ICPMS rack mounted. The shaker is under the tubes.

“The MANTECH PC-Titrates (MT100) are robust. With minimal maintenance, each system has been in continuous operation for 13 and 10 years each, analysing pH, Conductivity, Alkalinity and Fluoride per sample”
Keith, Inorganics Supervisor, Saskatchewan Research Council

“The precision was superior on the PC-Titrate system as was the multi-valve cleaning system, which included more titrants and purging of titrant lines. In conclusion the PC-Titrate system met our needs most closely and was the best long-term choice for our solutions analysis.”
David, EMD Chemicals

FAQ’s

What is Gran analysis and why is Gran alkalinity important?

Gran analysis is an effective alternative method for endpoint and pKa detection. Using a series of mathematical manipulations, standard titration curves are transformed into linear data called ‘Gran functions’. Endpoints and pKa’s are determined by performing a linear regression on these functions. In many cases, Gran analysis provides a more accurate endpoint, or identifies endpoints not evaluated in Standard Methods.

How is alkalinity speciated into carbonate, bicarbonate and hydroxide fractions?

The main compounds of alkalinity are: hydroxides (OH–), carbonates (CO32-), and bicarbonates (HCO3–). The alkalinity, or buffering capacity, of a solution depends on the absorption of positively charged hydrogen ions by negatively charged bicarbonate and carbonate molecules. When bicarbonate and carbonate molecules absorb hydrogen ions, there is a shift in equilibrium without a significant shift in pH. A sample with high buffering capacity will have high bicarbonate and/or carbonate content, and a greater resistance to changes in pH.

How does Mantech account for temperature compensation and correction in conductivity measurements?

Conductivity is a temperature dependent measurement. All substances have a conductivity coefficient which varies from 1% per °C to 3% per °C for most commonly occurring substances. The automatic temperature compensation on the Mantech Conductivity meter defaults to 1.91% per °C, this being adequate for most routine determinations.

Temperature-corrected Conductivity is calculated by:

1/ Subtract the current temperature of your standard from 25°C (or whichever reference temperature applies).
2/ Multiply the result by 1.91% which is your default temperature coefficient.
3/ Multiply the result by the uncorrected conductivity value.
4/ Add the result to the uncorrected conductivity value. If the sample temperature is higher than the reference temperature, the result of step 1, 2, and 3 are negative numbers so it is a subtraction from the uncorrected conductivity value.
5/ The result is the corrected conductivity value.

Example: Uncorrected conductivity value is 1200uS, current temperature is 21.4°C, reference temperature is 25°C, default correction factor of 1.91%

1/ 25.0 – 21.4 = 3.6
2/ 3.6 * 0.0191 = 0.06876
3/ 0.06876 * 1200 = 82.51
4/ 1200 + 82.51 = 1282.51uS <— Temperature Corrected Value for Reference Temperature 25°C

Conductivity readings varying with temperature may be due to the substances under test having a coefficient other than the typical value of 1.91% per °C. To eliminate this variation it is necessary to maintain all samples at the reference temperature by use of a thermostatic water bath or equivalent.

Adjustment may be made by entering the 4510 conductivity meter SETUP menu and selecting COEFF. The reading can then be adjusted to the required value (0.00 to 4.00) by using the keypad. A setting of 0.00 will mean that there is no temperature compensation being applied.

What is the minimum total liquid volume that can be measured for pH, conductivity and alkalinity with the MT Systems?

When using 50mL sample tubes, the minimum total volume can be as small as 6 ml using the TitraPro4 pH electrode and the Mantech 5mm conductivity probe. This is due to the lower immersion depth of these electrodes and precise autosampler coordinate specifications. When using 125mL sample cups, the minimum total volume can be as small as 15mL.

What are the benefits of IntelliRinse?

IntelliRinse™ is beneficial because it uses real-time measurement to provide confirmation that your probes are 100% clean, eliminating chances of cross-contamination.
Active IntelliRinse™ systems allows users to set user-defined values (e.g. rinse to a specific conductivity value) or to adjust the rinse intensity based on previous sample concentrations before moving to the next sample. This is beneficial as it improves the rinsing of probes/electrodes to ensure that cross-contamination does not occur even with particularly dirty or high-strength samples. There is also the option to have the final value measured during rinsing shown in a column on the results report, for a visual confirmation directly with sample results.

What is the measuring range for Dissolved Oxygen on Mantech systems?

Mantech systems utilize one of two dissolved oxygen probes from YSI for automated dissolved oxygen determination. The measuring ranges of both probes are listed below, along with a link to the complete specification sheets.

YSI FDO 4410 IDS Sensor

• Dissolved Oxygen Range: 0 to 20 mg/L
• Air Saturation Range: 0 to 200%
• Temperature Measurement Range: 0 to 50°C

YSI ProOBOD Sensor

• Dissolved Oxygen Range: 0 to 50 mg/L
• Air Saturation Range: 0 to 500%
• Temperature Measurement Range: Ambient 10 to 40°C; Compensation -5 to 50°C

What are the dimensions and space requirements for Mantech systems?

The measurements listed below are based on standard MT-Series systems. Measurements and pictures include the Mantech System Organizer (MSO), where applicable. System controllers and computer monitors are not included in the dimensions described below.

AM400 Only Configuration (No MSO):

AutoMax401 – Width: 62cm, Depth: 74cm, Height: 76cm
AutoMax402 – Width: 92cm, Depth: 74cm, Height: 76cm
AutoMax403 – Width: 122cm, Depth: 74cm, Height: 76cm
AutoMax404 – Width: 152cm, Depth: 74 cm, Height: 76cm
AutoMax405 – Width: 182cm, Depth: 74cm, Height: 76cm

What is the chemical compatibility of the tubing in Mantech pumps?

The tubing used in Mantech peristaltic and metering pumps is compatible with many types of chemicals. The following is a list of chemicals that are not recommended to be used with Mantech tubing/pumps.

*Chemicals without listed concentrations are assumed to be 100% concentrations/the maximum percent solubility in water.

Acetaldehyde, Ethyl Benzoate, Methyl Methacrylate, Acetone, Ethylene Bromide, Mineral Oil
Aliphatic Hydrocarbons, Fluoboric Acid (48% in w), Mineral Spirits, Amyl Alcohol, Fluorine (Gas), Motor Oil
Aqua Regia, Formaldehyde (37% in w), Naphtha, Aromatic Hydrocarbons, Fuel Oil, Naphthalene
ASTM Reference (No. 2 Oil), Furfural, Nitric Acid (68-71% in w), ASTM Reference (No. 3 Oil), Gasoline (Automotive), Nitrobenzene
Benzaldehyde, Heptane, Nitromethane, Benzene, Hexane, Oils (Essential)
Benzenesulfonic Acid, Hydrobromic Acid (20 -50% in w), Oils (Hydraulic, Phosphate Ester), Bromine (Anhydrous Liquid), Hydrobromic Acid (100% in w) Oils (Hydrocarbon)
Butyl Alcohol, Hydrofluoric Acid (10% in w), Ortho Dichlorobenzene, Carbon Disulfide, Hydrofluoric Acid (25% in w), Paraffins
Carbon Tetrachloride, Hydrofluoric Acid (40 -48% in w), Picric Acid (1% in w), Chlorine (Wet Gas), Isooctane, Skydrol (500A)
Chlorobenzene (Mono, Di, Tri), Jet Fuel (JP8), Styrene Monomer, Chloroform, Kerosene, Sulfur Chloride
Chlorosulfonic Acid, Ketones, Sulfuric Acid (95-98% in w), Cresol (m, o, or p), Lemon Oil, Tetrahydrofuran
Cyclohexane, Limonene-D, Toluene, Cyclohexanone, Lubricating Oils (Petroleum), Trichloroethylene
Diesel Fuel, Methyl Ethyl Ketone (MEK), Turpentine. Dioxane Methyl ,Isobutyl, Ketone, Xylene

How do Mantech systems measure and record temperature?

The standard method for measuring temperature is with a USB-connected stainless steel thermistor probe. The specifications for this probe are below:

• Communication: USB controlled by Mantech Pro Software
• Sheath Material: Super OMEGACLAD XL/ Stainless Steel/Inconel
• Temp Range: 0 to 1038 Degree C.
• Diameter: 0.062in
• Length: 6 inch
• Measurement to 3 decimal places
• Autocalibration feature in Mantech Pro software

Alternatively, when measuring conductivity, one can measure the temperature directly from the conductivity probe. This temperature is also displayed directly on the conductivity meter screen.

Mantech has the ability to use either of these measurement methods for pH temperature compensation, depending on customer preference and system configuration.

Mantech temperature sensors are available in both PT1000 and 10kNTC styles. PT1000 sensors have a linear positive-slope relationship between resistance and temperature with a resistance of 1000 ohms at 0°C, and 10kNTC sensors have a curved negative-slope relationship between resistance and temperature with a resistance of 10,000 ohms at 25°C. Both these models of temperature sensor perform well and comparably within the 0-100°C temperature range that liquid samples exist in. If you require a specific type of temperature sensor, please feel free to let Mantech know and we will accommodate.