Supplier: SIGMA ALDRICH MICROSCOPY

Xylenol orange tetrasodium salt is a fluorochrome acid dye with complexing and chelating properties that make it useful as an indicator in the spectrophotometric detection and assay of metal ions such as calcium, cadmium, bismuth, zinc, lead, and mercury. Its tetrasodium salt especially is used as an indicator in metal titrations. It changes color from yellow to red between pH 6.4 to 10.4. It has six potentially anionic substituents, one being sulfonate, and is anionic under staining conditions and during most laboratory applications.

Supplier: SIGMA ALDRICH MICROSCOPY

3-(2-Pyridyl)-5,6-diphenyl-1,2,4-triazine-4′,4′′-disulfonic acid sodium salt is a chelating agent for ferrous iron. It is also known as Ferrozine.

Supplier: Merck

TLC Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, PEI-cellulose, matrix, binder: no, fluorescent indicator 1 * 25 items

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan Red 7B has been used to stain the fat bodies of Ostrinia nubilalis (Hübner) larvae. Sudan red 7B, also known as fat red, is a non-fluorescent stain.[2] It is effectively used to stain lipids and is used to indicate the presence of suberin in cell walls.[2][3][4] Sudan red 7B acts as a marker for formosan subterranean termite, Coptotermes fornosanus Shiraki.

Supplier: SIGMA ALDRICH MICROSCOPY

Bromocresol green is a sulfonephthalein dye. It is mainly used for measuring serum albumin. In acidic conditions, bromocresol green interacts with albumin, thereby resulting in an increase in absorbance at 630 nm. The change in absorbance is linked with the concentration of albumin. Bromocresol Green is also a pH indicator, changing from yellow (pH 3.8) to blue color (5.4). It is widely used as a colloidal pigment.

Supplier: Merck

TLC Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, C18-silica gel 60 matrix, binder, Polymeric, fluorescent indicator 1 * 1 Each

Supplier: Merck

TLC Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 5 cm x 10 cm, silica gel 60 matrix, binder, Polymeric, fluorescent indic ator 1 * 1 Each

Supplier: SIGMA ALDRICH MICROSCOPY

Bromothymol Blue sodium salt has been used as a pH indicator in the yeast growth media (YPD, yeast extract peptone dextrose).

Supplier: Merck

TLC Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 5 cm x 20 cm, silica gel 60 matrix, binder, Polymeric, fluorescent indic ator 1 * 100 items

Supplier: SIGMA ALDRICH MICROSCOPY

Bromocresol Green (BCG), also known as bromcresol green, is a synthetic, anionic, triphenylmethane dye belonging to the phthalein and sulphonphthalein dyes group. It is commonly used as a pH indicator as it changes colour from yellow to blue-green at pH 3,8 to 5,4. The monosodium salt of bromocresol green is highly ionisable in water. The dye at a higher pH level produces a large and weakly lipophilic dianion.

Supplier: Merck

TLC Aluminum Sheets from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, aluminum oxide matrix, binder, not applicable, fluores cent indicator 1 * 25 items

Supplier: Merck

TLC Plastic Sheets from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, PEI-cellulose, matrix, binder, not applicable, fluoresc ent indicator 1 * 25 items

Supplier: Merck

Methylene blue is a heterocyclic aromatic chemical compound used as a cationic dye. It is used as a redox indication in analytical chemistry. Methylene blue is a component of a number of staining protocols such as Wright′s stain and Jenner′s stain for microscopic evaluation.

Supplier: Merck

PTLC (Preparative TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, silica gel 60 matrix, binder, Polymeri c, fluorescent indicator 1 * 20 items

Supplier: Merck

PTLC (Preparative TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, silica gel 60 matrix, binder, Polymeri c, fluorescent indicator 1 * 15 items

Supplier: Merck

PTLC (Preparative TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, silica gel 60 matrix, binder, Polymeri c, fluorescent indicator 1 * 12 items

Supplier: Merck

HPTLC (High Performance TLC) Aluminum Sheets from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, silica gel 60 matrix, binder, Polymeric, fluorescent indicator: no 1 * 25 items

Supplier: Merck

HPTLC (High Performance TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 10 cm x 10 cm, silica gel 60 matrix, binder, Po lymeric, fluorescent indicator 1 * 100 items

Supplier: Merck

HPTLC (High Performance TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 10 cm x 20 cm, silica gel 60 matrix, binder, Po lymeric, fluorescent indicator 1 * 50 items

Supplier: Merck

HPTLC (High Performance TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 10 cm x 20 cm, silica gel 60 matrix, binder, Po lymeric, fluorescent indicator: no 1 * 50 items

Supplier: Merck

HPTLC (High Performance TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 10 cm x 10 cm, silica gel 60 matrix, binder, Po lymeric, fluorescent indicator: no 1 * 25 items

Supplier: Merck

HPTLC (High Performance TLC) Aluminum Sheets from Merck KGaA, Darmstadt, Germany, L x W 20 cm x 20 cm, silica gel 60 matrix (C18), b inder, Polymeric, fluorescent indicator 1 * 20 items

Supplier: Merck

HPTLC (High Performance TLC) Glass Plates from Merck KGaA, Darmstadt, Germany, L x W 10 cm x 10 cm, silica gel 60 matrix, binder, Po lymeric, fluorescent indicator 1 * 25 items

Supplier: Merck

TOC INDICATOR UPGRADE KIT 1 * 1 items

Supplier: Merck

SQPAK™ Quanta cartridge is a high-capacity polishing cartridge that produces ultrapure (Type 1) water at 18,2 MΩ·cm resistivity. The cartridge contains IQnano™ ion-exchange media to remove ions down to trace levels.

Supplier: Merck

The SQPAK™ RO cartridge produces pure RO water at up to 42 L/h. This cartridge′s RO membrane efficiently removes up to 99% of water contaminants such as bacteria, ions, particulates and organics.

Supplier: Merck

The SQPAK™ TOC Quanta cartridge produces ultrapure (Type 1) water at 18,2 MΩ·cm resistivity and TOC ≤5 ppb. The cartridge contains IQnano™ ion-exchange media to remove ions down to trace levels and high-grade synthetic activated carbon that targets traces of organic contaminants.

Supplier: Merck

The compact, easy to use Milli-DI® water purification system has been designed especially to meet a need for small quantities of pure water, between 3 and 5 litres per day. The water produced is suitable for use in chemical and electrochemical applications, for the production of buffers, reagents and microbiological culture media, and a multitude of other applications. Milli-DI® water can also be used as feed water for ultrapure water systems.

Supplier: Merck

Sterile Millex filter units are available in a larger 33 mm housing with MCE membranes.

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.