You Searched For: Trimethylene+sulphide

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Copper(II) sulphide, -200 mesh 500g pack 1 * 500 g

Catalog Number: (APOSIN1595-500G)

Supplier: Apollo Scientific

Description: Copper(II) sulphide, -200 mesh 500g pack 1 * 500 g

UOM: 1 * 500 g

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Dialysis tubing, SERVAPOR®

Supplier: Serva

Description: Dialysis tubing is made of cellulose membrane. It contains low amounts of impurities such as sulphides and heavy metals.

Stirrer Bearings, glass

Supplier: Bohlender

Description: Combination of borosilicate glass piece with ground joint, an interior PTFE shaft guide with integrated special gasket and a GL screw cap made
of polyphenylene sulphide.

VWR®, Qualitative Filter Papers

Supplier: VWR Collection

Description: Grade 402 and 302: General grade for qualitative tasks. Suitable for most sulphides. Determination of total fat content in dairy products.
Grade 403 and 313: Drugs, pharmaceuticals, liquors, tinctures, chromatography and protein-free filtrations in the clinical laboratory.

Visual qualitative test paper, Sulphide - 5 mg/L S²⁻

Catalog Number: (92530.600)

Supplier: VWR Chemicals

Description: Qualitative Sulfide test paper for Sulfide: 5 mg/L S²⁻ (reel) 1 * 1 Roll

UOM: 1 * 1 Roll

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Papain, MP Biomedicals

Supplier: MP Biomedicals

Description: Activators: Papain is activated by cysteine, sulphide, sulphite and more. It is enhanced when heavy metal binding agents such as EDTA are also present. N-bromosuccinimide enhances the activity. Inhibitors: Substances which react with sulphydryl groups including heavy metals, carbonyl reagents. Aldehydes are papain inhibitors. Benzoylamidoacetonitrile is an inhibitor. See Shapira and Arnon (1967a and b) on antibody inhibitors. Papain may be inactivated by H₂O₂ generated by γ-irradiation of H₂O<sup>−</sup> the active SH group being oxidised to sulphenic acid. Specific inhibitors are AEBSF, antipain, cystatin, E-64, leupeptin, PMSF, TLCK and TPCK.