Chloride standard solution, 1,000 mg/L Cl- in Water (from NaCl) Certipur®, Supelco®
Supplier: Merck
Chloride standard solution, 1000 mg/L, Certipur®, Supelco®, Contents: NaCl in H₂O, Application: Ion chromatography standards
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Fluoride standard solution, 1,000 mg/L F- in Water (from NaF) Certipur®, Supelco®
Supplier: Merck
Fluoride standard solution, 1000 mg/L, Certipur®, Supelco®, Contents: NaF in H₂O, Application: Ion chromatography standards
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indicator for metal titration, Supelco®
Supplier: Merck
indicator for metal titration, Supelco®
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Nitrate standard solution, 1000 mg/L NO₃- in Water (from NaNO₃) Certipur®, Supelco®
Supplier: Merck
Nitrate standard solution, 1000 mg/L, Certipur®, Supelco®, Contents: NaNO₃ in H₂O, Application: Ion chromatography standards
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HPTLC plates with spherical particles, LiChrospher®
Supplier: Merck
HPTLC LiChrospher® plates are based on spherical-shaped silica 60 with a particle size of 7 µm, and narrow particle size distribution similar to the phases used in HPLC. LiChrospher® HPTLC plates possess a selectivity that is comparable to respective HPTLC plates, however, plate height and separation numbers are further improved resulting in shorter analysis times.
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Kjeldahl catalyst acc. to Wieninger
Supplier: Merck
Kjeldahl catalyst acc. to Wieninger, Contents: >94% Na₂SO₄; >1,45% CuSO₄; >1,5% Se
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Phosphate standard solution, 1000 mg/L PO₄³⁻ in water (from KH₂PO₄) Certipur®, Supelco®
Supplier: Merck
Phosphate standard solution, 1000 mg/L, Certipur®, Supelco®, Contents: KH₂PO₄ in H₂O, Application: Ion chromatography standards
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HPTLC plates silica gel 60, RP-modified layers, glass backed
Supplier: Merck
Our NH₂, CN- and DIOL-modified silica sorbents are less polar then conventional silica phases, making them ideal for separating hydrophilic or charged substances. Our moderately polar cyano- and diol-modified silica plates can be used for both normal phase and reversed phase systems. An alternative to PEI cellulose, amino-modified NH₂ plates provide weak basic ion exchange characteristics with special selectivity for charged compounds.
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Multi-element anionic standard, anions-whole volume, for ion chromatography, Supelco®
Supplier: Merck
Anions - whole volume, Supelco®, Matrix: H₂O, Contents: 10 analytes, Application: Ion chromatography standards
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N-Benzylidenebenzylamine, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Indicator for organolithium assay.
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Starch, soluble, extra pure pH 6.0 - 7.5 (20 g/l, H₂O, 25 °C)., SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Starch, soluble, extra pure pH 6.0 - 7.5 (20 g/l, H₂O, 25 °C)., SAFC®
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TLC plates, silica gel 60, modified layers, glass backed
Supplier: Merck
RP-2, RP-8 and RP-18 are based on silica gel 60 modified with aliphatic hydrocarbons. The chain length, in combination with the degree of modification, defines the ability to tolerate water in the solvent system and strongly affects retention. Migration time increases in the order RP-2, RP-8 and RP-18 using the same solvent composition. RP-8 and RP-18 can be run with up to 60% water in the solvent system.
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Methyl purple, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Methyl Purple,in H2O (Methyl Purple indicator solution)
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Ammonium standard solution, 1000 mg/L NH₄ in water (from NH₄Cl) Certipur® standard for Ion Chromatography, Supelco®
Supplier: Merck
Ammonium Standard, Ammonium standard solution, 1000 mg/L, Certipur®, Supelco®, Contents: NH₄Cl in H₂O, Application: Ion chromatography standards
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Phosphate standard solution, concentrate, 1,000 mg PO₄, Titrisol®, Supelco®
Supplier: Merck
Phosphate standard, Titrisol®, 1000 mg/l, Titrisol®, Supelco®, Contents: H3PO4 in water, Application: Ion chromatography standards
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Silica gel, Pore size: 60 Å (0.2-0.5 mm) for column chromatography, Millipore®
Supplier: Merck
Silica gel, Pore size: 60 Å (0.2-0.5 mm) for column chromatography, Millipore®
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Ammonia solution 25%, EMPROVE® ESSENTIAL Ph. Eur., BP, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).
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Chloride standard solution, 1,000 mg/L Cl- in water (from HCl), Titrisol®, Supelco®
Supplier: Merck
Chloride standard, concentrate Titrisol®, 1000 mg/l, Titrisol®, Supelco®, Matrix: H₂O, Contents: from HCl, Application: Ion chromatography standards, Analytical testing
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Sodium benzoate 99.0-100.5%, EMPROVE® ESSENTIAL Ph. Eur., BP, NF, FCC, E211, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). Corresponds to Ph Eur,BP,NF,FCC,E 211
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Bromocresol green-methyl red solution mixed indicator, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Suitable for titration of morpholine
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BCECF AM ester ≥85% (by HPLC), Calbiochem®, Sigma-Aldrich®
Supplier: Merck Millipore (Calbiochem)
A variable mixture of cell-permeable ester derivatives of BCECF that are hydrolyzed by cytosolic esterases to yield intracellularly trapped indicator BCECF. Has been used to monitor intracellular pH changes in mammalian fibroblasts, gastric cells, lymphocytes, myocytes, and distal convoluted tubule
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Sulphate standard solution, concentrate, 1000 mg SO₄, Titrisol®, Supelco®
Supplier: Merck
Titrisol® standards are traceable to standard reference material from NIST.
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Peroxidase Indicator Reagent
Supplier: SIGMA ALDRICH MICROSCOPY
It contains p-Phenylenediamine diHCL (1 part) and catechol (2 parts). Commonly referred to as Hanker Yates reagent. Kit component in the Sigma Leukocyte peroxidase (myeloperoxidase) Procedure, 390A.
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JC-1 iodide salt ≥95% (by HPLC), Calbiochem®
Supplier: Merck Millipore (Calbiochem)
A cationic, fluorescent, carbocyanine dye that can be used as a ratiometric indicator of mitochondrial potential δΨm in cells, tissues, and isolated mitochondria.
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BCECF AM ester 1 mg/mL in DMSO fluorescent pH indicator, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
An intracellular fluorescent pH indicator.
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3-Methoxydiphenylamine 98%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
3-Methoxydiphenylamine can be used in the preparation of 3- methoxydiphenylamine-4-diazonium salts (MDP-4-DS) and the corresponding diazoresins.[1] Diazonium salts and diazoresins find applications in dyes, stains, indicators, general laboratory use, and industrial applications.
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Quin 2 potassium salt hydrate, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Calcium-specific chelator and indicator. Upon binding calcium there is a shift in the UV spectrum and an enhancement of fluorescence.
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Kjeldahl tablets
Supplier: Merck
In addition to the traditional 5 g Kjeldahl tablets, which are added as catalysts to the digestion mixture, Merck Millipore can offer the 3,5 g tablet. This gives the flexibility needed to find the optimal setting for the catalyst/sulphuric acid ratio.