The following products have been found matching your search "kontamination": 9
The digital burette TITREX is ideal for a fast and sensitive titration “drop by drop”. One instrument simulates all volumes up to 99.99 ml. Moreover, titration is possible without any loss of reagent! From air-purging, necessary for a precise titration, to disassembly of the burette in the end of the titration – the reagent, that is not needed for the titration flows back into the bottle! TITREX‘s accuracy and precision are of highest quality. Our error ranges are better than those required by ISO 8655-3. The memory function allows saving of up to 1000 values, which can be transferred to a PC and read using the included software.
Your advantage at a glance:
- high quality precision instrument, made in Germany
- highest accuracy and precision, our error ranges are better than the DIN EN ISO 8655-3 requirements
- resistant against most acids and alkalis
- exclusive instrument with 0% loss of reagent - air-purging and draining within a closed circuit
- 360° rotatable valve block for your added safety
- two-in- one instrument: dosing & titration
- covers the complete volume range up to 50 ml when used as a dispenser and up to 99.99 ml when used as a burette
- easy and precise volume setting
- vertical valves: no sedimentation, no contamination
- 100 % drip-free by turning the cannula at 180°
- no transcriptions errors due to automatic value storage and the possibility of
- transferring values to a PC via RS232 interface (USB adapter optional available)
- calibration: standard with water of 20°C
- software enables saving the next calibration date
- recalibration for liquids of different viscosities possible e.g. determination of acid content in milk
- easy to dismantle and to clean, valve block autoclavable at 121°C
- automatic power-cut-off after three minutes
- including NiMH 1,2V 2100mAh battery
- individual certificate, CE label and serial number
- DE-M marked according to the German calibration law
Artikelliste
| Order number | Model | Version | Autoclavable | Thread | Systematic errors ISO | Systematic errors witeg | Random errors ISO | Random errors witeg | Volume | Volume adjustment | Accessories |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 497 050 | TITREX premium | premium | Valve block at 121°C | GL45 | ±0.1 ml | ±0.03 ml | ≤0.05 ml | ≤0.01 ml | 0 - 50 ml | Handwheels (left and right) | incl. TITREXSOFT and RS232 interface cord |
| 5 497 050 E | TITREX eco | eco | Valve block at 121°C | GL45 | ±0.1 ml | ±0.1 ml | ≤0.05 ml | ≤0.05 ml | 0 - 50 ml | Handwheels (left and right) | TITREXSOFT and RS232 interface cord not included in the scope of supply |
| 5 497 150 | TITREX fine adjustment | finely adjustable | Valve block at 121°C | GL45 | ±0.1 ml | ±0.03 ml | ≤0.05 ml | ≤0.01 ml | 0 - 50 ml | Handwheels (left and right) | incl. TITREXSOFT and RS232 interface cord |
High performance liquid chromatography (HPLC) is a biochemical analysis method used to separate, identify and quantify substances in a mixture. Compared to simple column chromatography, HPLC separates the mixture of substances under pressure and possibly also under the influence of temperature with the help of two phases, a stationary and a mobile phase, faster and more precisely.
The mobile phase consists of solvents that are withdrawn from storage bottles. For reliable results without contamination from the environment on the one hand and to protect the user from solvent vapors on the other hand, it is necessary for these bottles to be equipped with special safety caps.
witeg offers a cost-effective solution for this: the complete safety system suitable for all GL 45 laboratory bottles and more.
Artikelliste
| Order number | Model | Ideal for | Connections | Accessories |
|---|---|---|---|---|
| 8 257 201 | blue | OØ 1/8 inch tubing | 2 ports | - |
| 8 257 202 | blue | OØ 1/8 inch tubing | 3 ports | - |
| 8 257 203 | red | OØ 1/8 inch tubing | 3 ports | - |
| 8 257 204 | yellow | OØ 1/8 inch tubing | 4 ports | - |
| 8 257 205 | blue | OØ 1/16 inch tubing | 2 ports | - |
| 8 257 206 | red | OØ 1/16 inch tubing | 3 ports | - |
| 8 257 207 | yellow | OØ 1/16 inch tubing | 4 ports | - |
| 8 257 217 | black | OØ 1/8 inch tubing | 2 ports | 1x air valve and 1 x 1/4’’-28 fitting |
| 8 257 218 | black | OØ 1/8 inch tubing | 3 ports | 1x air valve and 2 x 1/4’’-28 fitting |
| 8 257 219 | black | OØ 1/8 inch tubing | 4 ports | 1x air valve and 3 x 1/4’’-28 fitting |
High performance liquid chromatography (HPLC) is a biochemical analysis method used to separate, identify and quantify substances in a mixture. Compared to simple column chromatography, HPLC separates the mixture of substances under pressure and possibly also under the influence of temperature with the help of two phases, a stationary and a mobile phase, faster and more precisely.
The mobile phase consists of solvents that are withdrawn from storage bottles. For reliable results without contamination from the environment on the one hand and to protect the user from solvent vapors on the other hand, it is necessary for these bottles to be equipped with special safety caps.
witeg offers a cost-effective solution for this: the complete safety system suitable for all laboratory bottles and more.
High performance liquid chromatography (HPLC) is a biochemical analysis method used to separate, identify and quantify substances in a mixture. Compared to simple column chromatography, HPLC separates the mixture of substances under pressure and possibly also under the influence of temperature with the help of two phases, a stationary and a mobile phase, faster and more precisely.
The mobile phase consists of solvents that are withdrawn from storage bottles. For reliable results without contamination from the environment on the one hand and to protect the user from solvent vapors on the other hand, it is necessary for these bottles to be equipped with special safety caps.
witeg offers a cost-effective solution for this: the complete safety system suitable for all GL 45 laboratory bottles and more.
Artikelliste
| Order number | Model | Thread | Material | Ideal for |
|---|---|---|---|---|
| 8 257 208 | natural | 10-32unf | OØ 1/16 inch tubing | |
| 8 257 209 | natural | 1/4-28 | PEEK | OØ 1/8 inch tubing |
| 8 257 210 | orange | 1/4-28 | PEEK | OØ 1/8 inch tubing |
| 8 257 211 | dark blue | 1/4-28 | PP | OØ 1/16 inch tubing |
| 8 257 212 | red | 1/4-28 | PP | OØ 1/8 inch tubing |
| 8 257 213 | dark blue | 1/4-28 | PP | OØ 1/8 inch tubing |
| 8 257 214 | natural | 10-32unf | PEEK | blind plug |
| 8 257 215 | black | 1/4-28 | PP | blind plug |
- for optimal protection against contamination
- with 1/4" thread
- with automatic lifetime indicator
- 6 months usable from start
High performance liquid chromatography (HPLC) is a biochemical analysis method used to separate, identify and quantify substances in a mixture. Compared to simple column chromatography, HPLC separates the mixture of substances under pressure and possibly also under the influence of temperature with the help of two phases, a stationary and a mobile phase, faster and more precisely.
The mobile phase consists of solvents that are withdrawn from storage bottles. For reliable results without contamination from the environment on the one hand and to protect the user from solvent vapors on the other hand, it is necessary for these bottles to be equipped with special safety caps.
witeg offers a cost-effective solution for this: the complete safety system suitable for all laboratory bottles and more.
Ideal for:
- microorganism culture, animal and plant cell culture, constant temperature, germination, etc.
Features:
- gravity-air flow preventing cross contamination of samples
- temperature uniformity and accuracy by high performance 3-sided heating mechanism
- 2x PE-coated steel wire shelves included
- ambient to 70°C of temperature range, fluctuation of ±0.2°C at 37°C, ±0.3°C at 50°C
- corrosion resistant stainless steel chamber, powder-coated body
- inner tempered glass door with silicone packing offers easy observation without door opening
- controller SW can be upgraded through USB port
- RS232C interface for monitoring and controlling (WireRemote)
- storage function for the set values of temperature and timer
- alarm function: error status and timer end
- backlight LCD display
- CE & UL/CUL certified and unique serial number for tracing
Safety mechanism:
- overheat and over-current protection
- sensor error detection and locking mode
Controller:
- Jog-Dial controller (PID) with 2-way knob (turn and push), digital LCD with backlight, and two durable setting buttons
Artikelliste
| Order number | Model | Width (inner) | Length (inner) | Height (inner) | Width (Outer) | Length (outer) | Height (outer) | Heating time | Shelves | Heating power | Capacity | Hole diameter | Holes | Power consumption | Temperature variation | Temperature control resolution | Temperature range | Temperature fluctuation | Packing size | Recovery time | Sensor |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DH.WIG03032 | WIG-32 230 V | 312 mm | 290 mm | 360 mm | 458 mm | 477 mm | 624 mm | 25 min. to 37°C, 40 min. to 50°C | 2 x PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 150 W | 32 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 159 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 568 x 592 x 698 mm | 8 min. to 37°C, 12 min. to 50°C | Temperature sensor PT100 |
| DH.WIG03050 | WIG-50 230 V | 370 mm | 350 mm | 420 mm | 518 mm | 537 mm | 701 mm | 25 min. to 37°C, 40 min. to 50°C | 2 x PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 200 W | 50 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 169.9 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 628 x 652 x 775 mm | 8 min. to 37°C, 12 min. to 50°C | Temperature sensor PT100 |
| DH.WIG03105 | WIG-105 230 V | 485 mm | 410 mm | 535 mm | 635 mm | 595 mm | 841 mm | 25 min. to 37°C, 40 min. to 50°C | 2 x PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 300 W | 105 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 292.9 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 731 x 710 x 1018 mm | 10 min. to 37°C, 15 min. to 50°C | Temperature sensor PT100 |
| DH.WIG03155 | WIG-115 230 V | 550 mm | 475 mm | 600 mm | 700 mm | 660 mm | 906 mm | 30 min. to 37°C, 40 min. to 50°C | 2 x PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 400 W | 155 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 420.5 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 796 x 775 x 1083 mm | 10 min. to 37°C, 15 min. to 50°C | Temperature sensor PT100 |
Ideal for:
- microorganism culture, animal and plant cell culture, constant temperature, germination, etc.
Features:
- gravity-air flow by natural flow preventing cross contamination of samples
- temperature uniformity and accuracy by high performance 3-sided heating mechanism
- 2x PE-coated steel wire shelves included
- corrosion resistant stainless steel chamber, powder-coated body
- inner tempered glass door with silicone packing offers easy observation without door opening
- ambient to 70°C of temperature range, fluctuation of ±0.2°Cat 37°C, ±0.3°C at 50°C
- storage function for the set values of temperature and timer
- alarm function: error status and timer end
- backlight LCD display
- CE & UL/CUL certified and unique serial number for tracing
Safety mechanism:
- overheat and over-current protection
- sensor error detection
Controller:
- Smart-Lab™ controller with 4? full touch screen TFT LCD:
- WiRe™ app service, remote control system
- variable program settings
- self-diagnostic function
- automatic data recording
- data transfer to PC by USB memory
- Internet connectivity with WiFi
Artikelliste
| Order number | Model | Version | Width (inner) | Length (inner) | Height (inner) | Width (Outer) | Length (outer) | Height (outer) | Heating time | Shelves | Heating power | Capacity | Hole diameter | Holes | Power consumption | Temperature variation | Temperature control resolution | Temperature range | Temperature fluctuation | Packing size | Recovery time | Sensor |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DH.SWIG03032 | SWIG-32 230 V | with Smart-LabTM controller | 312 mm | 290 mm | 360 mm | 458 mm | 477 mm | 624 mm | 25 min. to 37°C, 40 min. to 50°C | 2 PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 150 W | 32 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 159 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 568 x 592 x 698 mm | 8 min. to 37°C, 12 min. to 50°C | Temperature sensor PT100 |
| DH.SWIG03050 | SWIG-50 230 V | with Smart-LabTM controller | 370 mm | 350 mm | 420 mm | 518 mm | 537 mm | 701 mm | 25 min. to 37°C, 40 min. to 50°C | 2 PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 200 W | 50 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 169.9 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 628 x 652 x 775 mm | 8 min. to 37°C, 12 min. to 50°C | Temperature sensor PT100 |
| DH.SWIG03105 | SWIG-105 230 V | with Smart-LabTM controller | 485 mm | 410 mm | 535 mm | 635 mm | 595 mm | 841 mm | 25 min. to 37°C, 40 min. to 50°C | 2 PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 300 W | 105 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 292.9 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 731 x 710 x 1018 mm | 10 min. to 37°C, 15 min. to 50°C | Temperature sensor PT100 |
| DH.SWIG03155 | SWIG-115 230 V | with Smart-LabTM controller | 550 mm | 475 mm | 600 mm | 700 mm | 660 mm | 906 mm | 30 min. to 37°C, 40 min. to 50°C | 2 PE-coated steel wire shelves included, total load 32kg (16kg per shelf) | 400 W | 155 l | Inner Ø35 mm | 1 ventilation hole with stainless steel cap | 420.5 W | ±0.6°C at 37°C, ±1.0°C at 50°C | Control ±0.1°C | Room temperature +5°C - 70°C | ±0.2°C at 37°C, ±0.3°C at 50°C | 796 x 775 x 1083 mm | 10 min. to 37°C, 15 min. to 50°C | Temperature sensor PT100 |
VF5 & VF8 Ø25mm
Ideal for:
- small volume vacuum filtration for biological or particulate contamination analysis
VF6 & VF7 Ø47mm
Ideal for:
- solvent purification and general filtration for microbiology, suspended solid analysis etc.
VF3 & VF16 Ø47mm / Ø90mm
Ideal for:
- purification of organic, corrosive liquid such as solvent, mobile phase for HPLC, GC and AA analysis
Artikelliste
| Order number | Model | Version | Diameter (outer) | Material | Ideal for | Capacity | Stopper |
|---|---|---|---|---|---|---|---|
| 00829 167200-05 | VF5 filtration set, complete | with receiver flask | Filter: Ø25 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support base: borosilicate glass; stopper: silicone; receiver flask: borosilicate glass | Small volume vacuum filtration for biological or particulate contamination analysts | Funnel: 15 ml, receiver flask: 125 ml | No. 5 |
| 00829 167120-32 | VF5 filtration set, filter holder | without receiver flask | Filter: Ø25 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support base: borosilicate glass; stopper: silicone | Small volume vacuum filtration for biological or particulate contamination analysts | Funnel: 15 ml | No. 5 |
| 00829 167200-08 | VF8 filtration set, complete | with receiver flask | Filter: Ø25 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support screen: stainless steel, gasket: PTFE; support base: borosilicate glass; stopper: silicone; receiver flask: borosilicate glass | Small volume vacuum filtration for biological or particulate contamination analysts | Funnel: 15 ml, receiver flask: 125 ml | No. 5 |
| 00829 167120-34 | VF8 filtration set, filter holder | without receiver flask | Filter: Ø25 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support screen: stainless steel, gasket: PTFE; support base: borosilicate glass; stopper: silicone | Small volume vacuum filtration for biological or particulate contamination analysts | Funnel: 15 ml | No. 5 |
| 00829 167200-06 | VF6 filtration set, complete | with receiver flask | Filter: Ø47 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support base: borosilicate glass; stopper: silicone; receiver flask: borosilicate glass; fixing sucker: silicone | Solvent purification and general filtration for microbiology, suspended solid analysis etc. | Funnel: 300 ml, receiver flask: 1000 ml | No. 8 |
| 00829 167120-31 | VF6 filtration set, filter holder | without receiver flask and fixing sucker | Filter: Ø47 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support base: borosilicate glass; stopper: silicone | Solvent purification and general filtration for microbiology, suspended solid analysis etc. | Funnel: 300 ml | No. 8 |
| 00829 167200-07 | VF7 filtration set, complete | with receiver flask and fixing sucker | Filter: Ø47 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support screen: stainless steel, gasket: PTFE; support base: borosilicate glass; stopper: silicone; receiver flask: borosilicate glass; fixing sucker: silicone | Solvent purification and general filtration for microbiology, suspended solid analysis etc. | Funnel: 300 ml, receiver flask: 1000 ml | No. 8 |
| 00829 167120-33 | VF7 filtration set , filter holder | without receiver flask and fixing sucker | Filter: Ø47 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support screen: stainless steel, gasket: PTFE; support base: borosilicate glass; stopper: silicone | Solvent purification and general filtration for microbiology, suspended solid analysis etc. | Funnel: 300 ml | No. 8 |
| 00829 167200-03 | VF3 filtration set, complete | with receiver flask and fixing sucker | Filter: Ø47 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, suction cap: borosilicate glass; receiver flask: borosilicate glass; fixing sucker: silicone | Purification of organic, corrosive liquid such as solvent (mobile phase) for HPLC analysis | Funnel: 300 ml, receiver flask: 1000 ml | |
| 00829 167120-30 | VF3 filtration set, filter holder | without receiver flask and fixing sucker | Filter: Ø47 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, suction cap: borosilicate glass | Purification of organic, corrosive liquid such as solvent (mobile phase) for HPLC analysis | Funnel: 300 ml | |
| 00829 167200-16 | VF16 filtration set, complete | with receiver flask | Filter: Ø90 mm | Filter: borosilicate glass; funnel: borosilicate glass; clamp: anodized aluminium, support screen: PTFE coated; gasket: PTFE; suction cap: borosilicate glass; receiver flask: borosilicate glass | Purification of organic, corrosive liquid such as solvent, mobile phase for HPLC, GC and AA analysis | Funnel: 1000 ml, receiver flask: 5000 ml |