347 Results for: "Mobile phases and phase modifiers"

Supplier: Merck

Acetonitrile gradient grade for liquid chromatography LiChrosolv Reag. Ph Eur 1 * 185 L

Supplier: Merck

Metal Packed GC Column (General Configuration), phase 3% SP-1500, matrix 80/120 Carbopack B support, L x O.D. x I.D. 10.0 ft (3.0 m) x 1/8 in. x 2.1 mm 1 * 1 Each

Supplier: Merck

Metal Packed GC Column (fits Agilent, Configuration " A" ), phase none, matrix 60/80 Tenax TA support, L x O.D. x I.D. 6.0 ft (1.8 m) x 1/8 in. x 2.1 mm 1 * 1 Each

Supplier: Merck

Validation Kit LICHROSPHER® 60 RP-SELECT B (5 MYM) LICHROCART® 125-4 HPLC CARTRIDGE 1 * 1 KIT

Supplier: Merck

Purospher® STAR RP-8 endcapped, 5MYm Hibar® RT 150-3 HPLC column 1 * 1 items

Supplier: Merck

Validation Kit LICHROSPHER® 60 RP-SELECT B (5 MYM) LICHROCART® 250-4 HPLC CARTRIDGE 1 * 1 KIT

Supplier: Merck

Validation Kit SEQUANT® ZIC®-HILIC (5MYM,200A) PEEK 150 X 4.6 MM METAL-FREE HPLC COLUMN 1 * 1 KIT

Supplier: Merck

Validation Kit SEQUANT® ZIC®-HILIC (5MYM,200A) PEEK 150 X 2.1 MM METAL-FREE HPLC COLUMN 1 * 1 KIT

Supplier: Merck

Most individuals infected with Salmonella develop diarrhea, fever, and abdominal cramps 12 to 72 H after infection. The illness usually lasts 4 to 7 days, and the majority of patients recover without treatment. However, in some cases, the diarrhea may be so severe that hospitalisation is required. Salmonella is a genus of rod-shaped, Gram-negative, non spore-forming, predominantly motile bacteria, belonging to the Enterobacteriaceae family. Salmonella spp. are one of the most common causes of food poisoning worldwide and have been isolated from most types of raw food (e.g. meats, eggs and plant products). Their high resistance to drying combined with a very high heat resistance once dried makes Salmonella a potential problem in most foods, particularly in dry and semi-dry products. Food legislation in many countries includes limits on Salmonella – typically absence in 25 g of food. Traditional microbiological methods for detection of Salmonella in food and animal feed require a total of up to five days to obtain a simple yes/no result. Innovative, rapid tests make screening for pathogenic organisms easier. The one-step format reduces the possibility of errors during handling.

Supplier: Merck

TERRIFIC BROTH (MODIFIED) 1 * 250 g

Supplier: Merck

TERRIFIC BROTH (MODIFIED) 1 * 1 kg

Supplier: Merck

Modified purging device (frit porosity med/fine) 1 * 1 Each

Supplier: Merck

mTSB (modified Tryptic Soy Broth) acc. USDA-FSIS GranuCult prime 1 * 10 kg

Supplier: Merck

UVM Listeria selective enrichment broth modified acc. USDA-FSIS EcoCult 1 * 10 kg

Supplier: Merck

NBB Agar Base, modified 1 * 500 g

Supplier: Merck

Candida Ident Agar, modified 1 * 500 g

Supplier: Merck

Candida Ident Agar, modified 1 * 100 g

Supplier: Merck

LiChrospher® is Merck's reliable and versatile, traditionally-produced, spherical silica. LiChrospher® is available with different modifications.

Supplier: Merck

Ascentis® Express C18 high-speed, high-performance liquid chromatography columns are based on the highly efficient Fused-Core® particle design.

Supplier: Merck

Ascentis® Express ES-Cyano high-speed, high-performance liquid chromatography columns are based on the highly efficient Fused-Core® particle design.

Supplier: Merck

SPE tubes made from graphitised non-porous carbon.

Supplier: Merck

Ascentis® Express AQ-C18 are high-speed, high-performance liquid chromatography columns, based on the Fused-Core® particle design.

Supplier: Merck

Ascentis® Express PFAS HPLC columns, with Fused-Core® technology delivers necessary retention to perform in EPA methods 537.1, 533 and 8327. Fast and high resolution LC-MS separation of PFAS.

Supplier: Merck

Ascentis® Express 160 Å Phenyl-Hexyl high-speed, high-performance liquid chromatography columns are based on a 160 Å Fused-Core® particle design.

Supplier: Merck

Ascentis® C8 HPLC columns are optimised to the three terms of the resolution equation: efficiency, retention, and selectivity.

Supplier: Merck

The Discovery® Cyano HPLC Column with lower hydrophobicity than C18 or C8 and unique selectivity.

Supplier: Merck

Ascentis® Express 90 Å Biphenyl high-speed, high-performance liquid chromatography columns are based on a superficially porous Fused-Core® particle design.

Supplier: Merck

The Discovery® C8 columns provide the best suitable selectivity for many applications.

Supplier: Merck

The Discovery® C18 columns provide the best suitable selectivity for many applications.

Supplier: Merck

Ascentis®Phenyl HPLC columns are optimised to the three terms of the resolution equation: efficiency, retention, and selectivity.