The bottle-top dispenser makes liquid dosing easy and secure.

• Analog volume display
• Quickly adjustable dosing volume
• Volume selection with interior scalloped track
• Simple calibration adjustment with a supplied tool
• Valve system - tight sealing without additional sealing rings
• Filling valve, olive-shaped
• Autoclavable at 121 °C

Scope of supply:
Bottletop dispensers Dispensette^® S, DE-M marked, performance certificate, telescope filling tube, mounting tool, adapters made of PP
Yellow color code. Ideal for dispensing organic solvents, e.g., chlorinated and fluorinated hydrocarbons such as trichlorotrifluoroethane and methylene chloride, or concentrated acids such as HCl and HNO3 (not HF) as well as trifluoroacetic acid (TFA), tetrahydrofuran (THF) and peroxides.

Aksesuarlar  Aksesuarlar Discharge tube with integrated valve, FEP, for seripettor® pro Aksesuarlar Bottle-thread adapters, PP and ETFE Aksesuarlar Telescopic filling tubes, FEP

The bottle-top dispenser makes liquid dosing easy and secure.

• Easy to read digital display
• Exactly adjustable dosing volume
• Easy Calibration technology for adjustment in seconds without tools
• Valve system - tight sealing without additional sealing rings
• Removable filling and exhaust valve with safety bulb (closes when discharge tube is not mounted)
• Autoclavable at 121 °C

Scope of supply:
Bottletop dispensers Dispensette^® S, DE-M marked, performance certificate, telescope filling tube, mounting tool, adapters made of PP
Yellow color code for dispensing organic solvents, including chlorinated and fluorinated hydrocarbons (e.g., trichlorofluoroethane and dichlormethane), acids like concentrated HCl and HNO₃ (except HF), trifluoroacetic acid (TFA), tetrahydrofuran (THF) and peroxides.

Aksesuarlar Bottle-thread adapters, PP and ETFE Aksesuarlar Telescopic filling tubes, FEP Aksesuarlar Dosing needles for Dispensette® S Aksesuarlar Filling valves for Dispensette® S/S Organic

The bottle-top dispenser makes liquid dosing easy and secure.

• Fixed dosing volume
• Simple calibration adjustment with a supplied tool
• Valve system - tight sealing without additional sealing rings
• Filling valve, olive-shaped
• Autoclavable at 121 °C

Scope of supply:
Bottletop dispensers Dispensette® S, DE-M marked, performance certificate, telescope filling tube, mounting tool, adapters made of PP
Color code yellow for dispensing organic solvents, including chlorinated and fluorinated hydrocarbons (e.g., trichlorofluoroethane and dichlormethane), acids like concentrated HCl and HNO₃ (except HF), trifluoroacetic acid (TFA), tetrahydrofuran (THF) and peroxides.

Aksesuarlar Bottle-thread adapters, PP and ETFE Aksesuarlar Telescopic filling tubes, FEP

The bottle-top dispenser makes liquid dosing easy and secure.

• Analog volume display
• Quickly adjustable dosing volume
• Volume selection with interior scalloped track
• Simple calibration adjustment with a supplied tool
• Valve system - tight sealing without additional sealing rings
• Filling valve, olive-shaped
• Autoclavable at 121 °C

Scope of supply:
Bottletop dispensers Dispensette^® S, DE-M marked, performance certificate, telescope filling tube, mounting tool, adapters made of PP
Yellow color code. Ideal for dispensing organic solvents, e.g., chlorinated and fluorinated hydrocarbons such as trichlorotrifluoroethane and methylene chloride, or concentrated acids such as HCl and HNO3 (not HF) as well as trifluoroacetic acid (TFA), tetrahydrofuran (THF) and peroxides.

Aksesuarlar  Aksesuarlar Discharge tube with integrated valve, FEP, for seripettor® pro Aksesuarlar Bottle-thread adapters, PP and ETFE Aksesuarlar Telescopic filling tubes, FEP

LIPODEX^® cyclodextrin phase for enantiomer separation

base material: cyclic oligosaccharide consisting of eight glucose units bonded through α-1,4-linkages (y-cylodextrin) regioselective alkylation and acylation of the hydroxyl groups leads to a lipophilic phase, which is well suited for GC enantiomer analyses; important advantage: many compounds can be analysed without derivatisation (however, for certain substances enantioselectivity can be favourably influenced by formation of derivatives)

LIPODEX^® E is suitable for a broad application range.
Octakis-(2,6-di-O-pentyl-3-O-butyryl)-γ-cyclodextrin. Recommended for α-amino acids, α- and β-hydroxycarboxylic acid esters, alcohols (TFA), diols (TFA), ketones, pheromones (cyclic acetals), amines, alkyl halides, lactones.

• Max. temperature for isothermal operation: 200°C
• Max. temperature for short isotherms in a temperature programme: 220°C

For improved volatility, better thermal stability or low limit of detection in gas chromatography prerequisite: quantitative, rapid and reproducible formation of only on derivative halogen atoms introduced by derivatisation (e.g. trifluoroacetates) allow specific detection (ECD) with the advantage of high sensitivity elution order and fragmentation patterns in MS can be influenced by a specific derivatisation.
Reagents for silylation - alkylation (methylation) - acylation are available.
N-methyl-N-trimethylsilyl-trifluoroacetamide
m.w. 199.1, Bp 70 °C (75 mm Hg), density d20°/4° = 1.11
MSTFA: R' = CF₃, R" = CH₃
The most volatile trimethylsilyl amide available.
Very strong TMS donor which does not cause any noticeable fouling of the FID burning chamber even after long-time measuring series.
The already good solution characteristics can be improved by addition of submolar quantities of protic solvents (e.g. TFA for extremely polar compounds such as hydrochlorides) or pyridine (e.g. for carbohydrates).

• Count-up and count-down timer (double), memory function, LED warning lamp (changes from green to red when the time has expired), 3 volume levels, with magnet for fixing, table stand and hanging slot
• Range: time up to 99 hrs, 59 min, 59 sec
• Wall mounting or table standing
• 2x 1.5 V AAA batteries not included

Dimensions (W x H x D):

91 x 76 x 21 mm

Alternatif 3-channel-short period timer

• With large display, magnet for fixing, support, clip and hanger
• Range: time up to 99 min, 59 sec
• Wall mounting or table standing
• 1 x 1.5 V AAA battery included

Alternatif Digital countdown timer and stopwatch Shake Awake Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch

Digital thermometer with extra large LCD.

• measurement of a second temperature (e.g. outside temperature) via cable
• high and low values with manual reset
• to hang or place (with fold-out stand)
• cable length approx. 300 cm

Specifications
Temperature measuring range indoor/outdoor:	-10 … 50 °C / -50 … 70 °C
Dimensions:	102 x 21(50) x 110 mm
Weight:	147 g
Power supply:	1 x 1,5 V AAA (Micro)

• 3 count down timer, simultaneous operation possible, clock, count-up timer with 1/100 sec., memory function, with magnet for fixing
• Range: time up to 19 hrs, 59 min, 59 sec
• Wall mounting or table standing
• Incl. batteries: 2 x 1.5 V AAA

Dimensions (W x H x D):

103 x 121 x 61 mm

Alternatif Laboratory short period timer Compact 2 Alternatif Stopwatches, Delta E 200

• With large display, surface aluminium, magnet for fixing and support
• Range: time up to 99 min, 59 sec
• Wall mounting or table standing
• 1 x 1.5 V AAA battery included

Alternatif Digital countdown timer and stopwatch Shake Awake Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch

Digital thermometer with temperature alarm and waterproof outdoor sensor.

• Two-tier LCD, max./min. temperature, switchable to °F
• Indoor/outdoor measuring temperature range: -10 to 50 °C / -50 to 70 °C
• Display resolution: 0.1 °C
• Accuracy: ±1 °C (0 to 50 °C), otherwise ±2 °C
• Dimensions: 70 x 20 x 110 mm
• Weight: 90 g (only device)
• Incl. battery: 1 x 1.5 V AAA
• Cable length: approx. 290 cm

• With large display, memory function, LED warning lamp (changes from green to red when the time has expired), 3 volume levels, with magnet for fixing, table stand and hanging slot
• Range: time up to 99 min, 59 sec
• Wall mounting or table standing
• 2x 1.5 V AAA batteries included

Alternatif Digital countdown timer and stopwatch Shake Awake Alternatif Stopclock, analogue, Mesotron Alternatif Benchtop timer PRISMA 200 Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch

Polar modified polystyrene-divinylbenzene copolymer with a weak anion exchanger

Specific surface 650 to 700 m²/g, particle size 80µm, pore size 50 Å, pH stability 1 to 14. Due to bifunctional modification much more hydrophilic than conventional polystyrene-divinylbenzene polymers and thus easily wettable with water.

Recommended applications: polar herbicides / pesticides from water (acidic, neutral, basic), polar phenols from water, polyaromatic compounds, polychlorinated biphenyls, drug analysis from urine, blood, serum, plasma pharmaceuticals / active ingredients from tablets, creams.

Due to the bifunctional modification CHROMABOND^® Easy is considerably more hydrophilic than conventional polystyrene-divinylbenzene polymers and thus easily wettable with water. The Easy effect: Aqueous samples can be loaded directly without preconditioning! This means that little or even no conditioning is needed, in contrast to standard SPE materials, where recovery rates normally decrease, in the worst case down to zero! Depending on the separation task conditioning may be required and is recommended for method development. A positive side effect of the excellent wettability: there is no decrease of recovery rates, if the cartridge runs dry, therefore automation is easier or, in some cases compared to silica materials, only feasible with CHROMABOND^® Easy, because a permanent vacuum can be used without supervision.

Further advantages of using a polymeric material:

• high surface, this means very high binding capacity (2 - 5 times higher than silica-based adsorbents)
• less adsorbent is needed in the cartridge (without losing sensitivity or recovery)
• faster analysis, because the height of the adsorbent bed can be reduced
• acidic or basic solvents (e. g. TFA) do not destroy the phase, or lead to unintended side products

Because of the polar modification the material is suitable for a broad range of compounds (acidic, neutral, basic, polar and nonpolar substances). Highly reproducible recovery rates can be obtained, even if the cartridge runs dry (especially advantageous when using 96-well plates, where stopcocks are not available!)

For indoor temperature and fridge, with magnet, fridge symbol on display from 4 to 8 °C.

• Measuring temperature range: -20 ... 50 °C, switchable °F
• Wall mounting or table standing
• Dimensions: 68 x 24 x 61 mm
• Weight: 31 g
• Incl. battery: 1 x CR2025

Due to the compact design, the device is very flexible and can be placed anywhere. Large display is easy to read.

• Measuring range indoor/outdoor: -10 to 60 °C / -50 to 70 °C
• Outdoor sensor model with cable, length 3 m
• With fold-out stand
• Dimensions: 54 x 30 x 39 mm
• Weight: 50 g
• Incl. batteries: 1 x 1.5 V LR44

• Direct numeric time setting, on/off switch, with table stand
• Range: time up to 99 hrs, 99 min, 99 sec
• Table standing
• 2x 1.5 V AAA batteries included

Alternatif Digital countdown timer and stopwatch Shake Awake Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch Alternatif Digital countdown timer and stopwatch

• Memory function, magnet for fixing and support
• Range: time up to 99 min, 59 sec
• Wall mounting or table standing
• 1x 1.5 V AAA battery included

Alternatif Digital countdown timer and stopwatch Shake Awake Alternatif Stopclock, analogue, Mesotron Alternatif Benchtop timer PRISMA 200

• Memory function, with magnet for fixing
• Range: time up to 99 min, 59 sec
• Wall mounting
• 1x LR44 battery included

Alternatif Digital countdown timer and stopwatch Shake Awake Alternatif Stopclock, analogue, Mesotron Alternatif Benchtop timer PRISMA 200