The following products have been found matching your search "kontaminationsstoffe": 17
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:
- microbiological filtration technique for analyzing aqueous-based fluids for microbiological contamination
- suspended solid test for municipal, surface, ground and drinking water
- general filtration without the need of collecting filtrate
Features:
- -540 mmHg
- up to 0,5 l/min (liquid) or 2,2 l/min (air)
- integrated vacuum pump
- compact design - ideal for work benches or laminar flow hoods
- no special suction flask or waste bottle is needed
- available with spin-lock or stopper design
- one push-button for easy operation
- silicone tube (2m) for waste drain included
Artikelliste
| Order number | Model | Version | Width (Outer) | Length (outer) | Height (outer) | Diameter (outer) | Material | Ideal for | Connections | Vacuum range |
|---|---|---|---|---|---|---|---|---|---|---|
| 00829 190110-02 | MultiVac 100 spin-lock | with spin-lock | 120 mm | 170 mm | 96 mm | Filter: Ø47 mm / 50 mm | Housing: SUS 304; valve plate: EPDM; diaphragm: EPDM; inlet / outlet port: SUS 316; O-ring: FKM; tube: silicone | Microbiological filtration technique for analysing aqueous-based fluids for microbiological contamination, suspended solid test for municipal, surface, ground and drinking water, general filtration without the need of collection filtrate | EU-plug | max. -540 mmHg |
| 00829 190120-02 | 120 mm | Filter: ?47 mm / 50 mm | EU-Anschluss | Max. -540 mmHg |
Ideal for:
- culturing cells to hybridization, staining and destaining gels, and combinatorial chemistry
- hybridization, washing blots, culturing microbes
Features:
- 10 - 300 rpm
- 230x230 mm or 350x350 mm
- digital LCD display
- smooth start and change of shaking speed while operation
- minimum noise
- timer for 0-99 hours
- multiple platforms and flask holder available
- brushless DC motor
- CE certified and unique serial number for tracing
Safety mechanism:
- timer 99h 59min with timer-end signal
- operation LEDs
- overload protection
- locking mode
Controller:
- programmable Jog-Shuttle controller with touch-button
Artikelliste
| Order number | Model | Version | Width (Outer) | Length (outer) | Height (outer) | Ideal for | Controller | Moisture range | Speed | Plate size | Shaking motion | Temperature range | Packing size | Max. load |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DH.WSO04010 | SHO-1D 230 V | Amplitude: 10 mm | 250 mm | 330 mm | 150 mm | Culturing cells to hybridization, staining and destaining gels, and combinatorial chemistry, hybridization, washing blots, culturing microbes | Digital, 6 programs, 10 steps | 85% RH | 10-300 rpm | 230 x 230 mm | Orbital motion | at ambient temperature: +5 - 50°C | 450 x 350 x h250 mm | 8 kg |
| DH.WSO04012 | SHO-2D 230 V | Amplitude: 20 mm | 400 mm | 480 mm | 160 mm | Culturing cells to hybridization, staining and destaining gels, and combinatorial chemistry, hybridization, washing blots, culturing microbes | Digital, 6 programs, 10 steps | 85% RH | 10-300 rpm | 350 x 350 mm | Orbital motion | at ambient temperature: +5 - 50°C | 580 x 500 x h250 mm | 10 kg |
Ideal for:
- culturing cells to hybridization, staining and destaining gels, and combinatorial chemistry
- hybridization, washing blots, culturing microbes
Features:
- 10 - 300 rpm
- 230x230 mm or 350x350 mm
- digital LCD display
- smooth start and change of shaking speed while operation
- minimum noise
- timer for 0-99 hours
- multiple platforms and flask holder available
- brushless DC motor
- CE certified and unique serial number for tracing
Safety mechanism:
- timer 99h 59min with timer-end signal
- operation LEDs
- overload protection
- locking mode
Controller:
- programmable Jog-Shuttle controller with touch-button
Fleaker, 1000 ml, Ø 131 mm, borosilicate glass 3.3, combination of beaker and conical flask, with spout, graduation, autoclavable, heat resistant, Pack = 10 pcs.
Fleaker, 100 ml, Ø 64 mm, borosilicate glass 3.3, combination of beaker and conical flask, with spout, graduation, autoclavable, heat resistant, Pack = 10 pcs.
Fleaker, 250 ml, Ø 85 mm, borosilicate glass 3.3, combination of beaker and conical flask, w. spout, graduation, autoclavable, heat resistant, Pack = 10 pcs.
Fleaker, 500 ml, Ø 105 mm, borosilicate glass 3.3, combination of beaker and conical flask, with spout, graduation, autoclavable, heat resistant, Pack = 10 pcs.