Centrifuge tubes are specially designed to be placed in centrifuges to separate liquids, cells or other particles based on their density. During centrifugation, the contents are broken down into their components through rapid rotation around the fixed axis. The centrifugal force pushes the heavier components of the substance downwards, while the lighter ones remain at the top. In this way, solids can be reliably separated from liquids as well as substances of different densities.
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pH Tester LLG-pH Pen
LLG
Cost efficient pH tester, ideal for testing small amounts of liquid and in narrow vessels. The supplied storage container prevents the electrode from drying out.
ATC from 0 °C to 50 °C
Large, easy-to-read LCD display
3-point calibration
Scope of supply:...
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Cost efficient pH tester, ideal for testing small amounts of liquid and in narrow vessels. The supplied storage container prevents the electrode from drying out.
With cable duct. For three electrodes, 3 openings with diam. 16 mm. Additional opening for temperature sensor. Three joints for high flexibility and adjustment options....
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With cable duct. For three electrodes, 3 openings with diam. 16 mm. Additional opening for temperature sensor. Three joints for high flexibility and adjustment options.
Base plate:
105 x 125 mm
Base plate weight:
0.7 kg
Arm weight:
0.1 kg
Max. arm height:
320 mm
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Accessories for LLG-pH meter 5
LLG
...
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LLG-pH electrode with gel electrolyte
LLG
Low maintenance combination electrode with integrated temperature sensor, robust plastic shaft and gel electrolyte....
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Low maintenance combination electrode with integrated temperature sensor, robust plastic shaft and gel electrolyte.
pH electrode with chemically resistant PEEK shaft and open junction for general applications in the laboratory and outdoors.
ARGENTHAL™ reference system with silver ion trap
Solid XEROLYT® reference electrolyte
-With integrated temperature probe and fixed cable...
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pH electrode with chemically resistant PEEK shaft and open junction for general applications in the laboratory and outdoors.
ARGENTHAL™ reference system with silver ion trap
Solid XEROLYT® reference electrolyte
-With integrated temperature probe and fixed cable
ISM version: With automatic sensor recognition and storage of calibration history. Calibration data and probe ID are stored in the sensor and transmitted automatically to the measuring device
pH combination electrode, gel electrolyte, SenTix®
WTW
Basic pH combination electrodes, with plastic body, gel reference system. SenTix
® 20 with plug head (AS/DIN or AS/BNC cable combination please order separately). Sentix 21-3 and Sentix 41-3 with 3 m fixed cable....
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Basic pH combination electrodes, with plastic body, gel reference system. SenTix® 20 with plug head (AS/DIN or AS/BNC cable combination please order separately). Sentix 21-3 and Sentix 41-3 with 3 m fixed cable.
Standard pH combination electrodes with glass shaft, non-solid electrolytes. With fixed cable (1m). SenTix
® 60 with screw head (AS/DIN or AS/BNC cable combination please order separately)....
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Standard pH combination electrodes with glass shaft, non-solid electrolytes. With fixed cable (1m). SenTix® 60 with screw head (AS/DIN or AS/BNC cable combination please order separately).
Low maintanance pH electrodes with plastic shaft and gel electrolyte, with built-in temperature sensor NTC 30 kOhm. With waterproof digital connector, cable length 1.5 m, SenTix
® 940-3 with 3 m cable....
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Low maintanance pH electrodes with plastic shaft and gel electrolyte, with built-in temperature sensor NTC 30 kOhm. With waterproof digital connector, cable length 1.5 m, SenTix® 940-3 with 3 m cable.
With epoxy body and gel electrolyte, fixed cable with BNC / Cinch connection. For simple measurements, particularly suitable for portable pH meters, with temperature sensor....
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With epoxy body and gel electrolyte, fixed cable with BNC / Cinch connection. For simple measurements, particularly suitable for portable pH meters, with temperature sensor.
Specifications
Electrolyte:
3 mol / L KCI sat. with AgCl as gel, non-refillable
Body length:
120 mm
pH:
0 ... 14 pH
Temperature:
0 ... 80 °C
Temperature sensor:
NTC 30 kΩ
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Cable combinations
SI Analytics
For BlueLine pH electrodes, ScienceLine, IoLine and TopLine.
Cable length: 1 m coaxial cable....
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For BlueLine pH electrodes, ScienceLine, IoLine and TopLine. Cable length: 1 m coaxial cable.
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pH electrodes InLab®Routine Series
Mettler-Toledo
Combined pH electrode, glass shaft, ARGENTHAL™ reference with silver-ion trap, detachable cable. For InLab
®Routine please order separately InLab
® cable S7 and for InLab
®Routine Pro and InLab
®Routine Pro ISM please order separately InLab
® cable MultiPin-BNC/RCA....
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Combined pH electrode, glass shaft, ARGENTHAL™ reference with silver-ion trap, detachable cable. For InLab®Routine please order separately InLab® cable S7 and for InLab®Routine Pro and InLab®Routine Pro ISM please order separately InLab® cable MultiPin-BNC/RCA.
For connecting pH electrodes with built-in temperature sensors and MultiPin™ plug head or S7 plug head (without temperature sensor). Suitable for a wide range of measuring devices from different manufacturers....
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For connecting pH electrodes with built-in temperature sensors and MultiPin™ plug head or S7 plug head (without temperature sensor). Suitable for a wide range of measuring devices from different manufacturers.
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pH combination electrode InLab® Solids
Mettler-Toledo
With spear-tip membrane. With glass shaft, Argenthal™ reference system and S7 plug head.
Cable - please order separately....
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With spear-tip membrane. With glass shaft, Argenthal™ reference system and S7 plug head.
pH combination electrode, SenTix® H / SenTix® HW, refillable
WTW
Precision pH combination electrodes with glass shaft and liquid electrolyte. With plug head (AS/DIN or AS/BNC cable combination please order separately). SenTix
® H for high alkaline solutions, SenTix
® HW for low conductive samples....
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Precision pH combination electrodes with glass shaft and liquid electrolyte. With plug head (AS/DIN or AS/BNC cable combination please order separately). SenTix® H for high alkaline solutions, SenTix® HW for low conductive samples.
In order to meet the variety of different requirements, we offer centrifuges in a wide range of formats, sizes and materials.
Application and quality
Centrifuge tubes are used wherever the components need to be split - for example, for blood samples to separate the plasma, to isolate proteins or DNA, to collect cell cultures
or microorganisms from cultures, for the concentration of particles from environmental samples... The range of applications is diverse.
The high demands placed on these analyses also mean that no compromises can be made when selecting the centrifuge tubes used.
At Th. Geyer, we therefore focus on the highest quality and maximum safety - even at maximum speeds and high centrifugal pressure.
The material
You can choose between plastic, glass and stainless steel for the raw materials used. While stainless steel usually plays a subordinate role, plastics such as polypropylene (PP), polyamide (PA), polyethylene (PE) or polycarbonate (PC) are the standard in laboratories and research environments.
Depending on the type of plastic, centrifuge tubes can withstand very low to very high temperatures.
They are stable against chemicals and can be translucent or opaque, depending on requirements.
Centrifuge tubes made of glass impress with their basic resistance to chemicals, acids, bases and organic solvents.
The glass variants score points with their reusability and above-average durability. If required, glass allows a high degree of transparency and offers relatively easy handling
If the material is subjected to high speeds during centrifugation, plastic is usually the better choice.
Th. Geyer offers centrifuge tubes in both variants.
The sizes
Th. Geyer meets the specific requirements for the dimensions and capacity of centrifuge tubes with a large selection of different sizes.
These can be up to 500 ml, while sizes such as 50 mL and 15 mL are available for smaller filling volumes. In the micro range, centrifuge tubes are between 1.5 mL and 0.2 mL, which are mainly used in laboratories.
Of course, we offer you a wide selection of all common formats.
The lid
During centrifugation, the lid of the centrifuge tube prevents liquid from leaking out. Traditionally, screw, push-in or plug-in lids are used for this purpose, which are easy to close.
Micro centrifuge tubes are usually fitted with a snap-on cap. For very large variants, threaded lids ensure leakage protection. You will find both models with and without lids in our range.
Depending on your choice, you can always order stoppers and the like separately.
The base
The different base variants also meet the respective requirements. The conical base with its slightly tapered shape allows for selective material collection, making separation and removal much easier
Sample recovery is particularly high. Alternatively, you can also choose between self-standing centrifuge tubes with a flat base or a rounded base.
Benefit from our portfolio of centrifuge tubes
Are you looking for centrifuge tubes for demanding applications? Th. Geyer offers a wide range of the highest quality. Functional, easy to handle and with an attractive price-performance ratio.
Please feel free to send us your enquiry or contact us directly in person. We look forward to hearing from you!
