349 Results for: "Mobile phases and phase modifiers"

Supplier: Merck

LiChrosorb® is one of the most successful HPLC packing materials. It is a totally porous, irregular particle silica gel produced with pore sizes of 60 and 100 Å. LiChrosorb® HPLC columns are available either as a cartridge, requiring re-usable endfittings, or as a complete end-fitted column.

Supplier: Merck

Stainless steel LiChroCART® cartridges are available with LiChrospher® sorbents. Ideal for separation of compounds under basic eluents.

Supplier: Merck

Merck columns come in three formats.

Supplier: Merck

Superspher® improves the separation efficiency of HPLC analysis. This high performance spherical silica carrier, with a mean particle size of 4 μm, yields the best pressure/separation performance ratio in view of today's generation of HPLC systems and according to theoretical calculation and practical experience.

Supplier: Merck

All Spectroquant® test kits can be used with the Prove range of spectrophotometers and Nova 60/60A instruments. Tests can be used not only on photometers and spectrophotometer from Merck, but also on photometers and spectrophotometers from other suppliers (programming details available on request).

Supplier: Merck

The Milli-Q® SQ 200 water purification system delivers ultrapure (Type 1) water from an SQ Switch 3,5 L tank filled with pure reverse osmosis (RO) water.

Supplier: Merck

These columns have been designed following the high demand for suitable analytical methods for process monitoring and quality control of wide pore biomolecules. Accurate analysis of proteins, antibodies and large peptides requires columns with good permeability, along with better mass transfer and selectivity. In order for size exclusion not to influence the separation, the pore size should be approximately ten times larger than the molecule being analysed.

Supplier: Merck

Monolithic silica technology: A new age in chromatography. Chromolith® columns are based on silica so existing methods can be easily transferred with only minimal investment in new method development work. 'Sol-Gel' technology allows highly porous monolithic rods of silica to be formed. These feature a bimodal pore structure provides a unique combination of macropores and mesopores.

Supplier: Merck

The Milli-Q® SQ 240CV water purification system delivers both pure reverse osmosis (RO) water and ultrapure (Type 1) water. It benefits from a fixed preset volume dispenser that records and repeats the dispensing volume of ultrapure water.

Supplier: Merck

The Milli-Q® SQ 240C water purification system delivers both pure reverse osmosis (RO) water and ultrapure (Type 1) water. It benefits from a flexible handset dispenser to deliver ultrapure water. It can also be equipped with a gravity valve (optional) to dispense pure RO water directly from the SQ Switch 3,5 L tank base.

Supplier: Merck

BILE BOVINE 1 * 10 g

Supplier: Merck

Available with optimised 2 μm particulate silica, these UHPLC columns, based on Purospher® STAR RP-18 endcapped, are ideal for ultra-fast applications, where resolution, sensitivity and sample throughput are crucial. They are the first choice for high throughput screening and QC analyses, process monitoring, method development and LC-MS applications. Due to its balanced selectivity, Purospher® STAR RP-18 endcapped UHPLC columns cover almost all demanding separations with tailing-free chromatograms. Purospher® STAR RP-18 endcapped 3 μm columns are recommended for difficult samples where clogging and back pressure present an issue.

Supplier: Merck

MAINTENANCE PLAN SERVICE ESSENTIAL PHARM 1 * 1 items

Supplier: Merck

BILE ESCULIN AGAR, FOR MICROBIOLOGY 1 * 500 g

Supplier: Merck

All Spectroquant® test kits can be used with the Prove range of spectrophotometers and Nova 60/60A instruments. Tests can be used not only on photometers and spectrophotometer from Merck, but also on photometers and spectrophotometers from other suppliers (programming details available on request).

Supplier: Merck

VIOLET RED BILE GLUCOSE AGAR, FOR MICROB IOLOGY 1 * 500 g

Supplier: Merck

Bile esculin azide agar ISO 7899-2:2000 1 * 500 g

Supplier: Merck

Work with ease and filter with confidence with Stericup® and Steritop® filtration systems. The Stericup® E and Steritop® E sterile filters have been designed to reduce plastic and packaging.

Supplier: Merck

Work with ease and filter with confidence with Stericup® and Steritop® filtration systems. The Stericup® E and Steritop® E sterile filters are designed as a greener alternative for vacuum sterile filtration that significantly reduces plastic and packaging.