Gravimetry is a highly precise quantitative analytical techniquie. It provides very little room for instrumental error and does not require a series of standards for calculation of an unknown. Sigma-Aldrich is offering a wide range of Fluka branded gravimetric reagents used for precipitation of the analyte. The precipitate can then be collected by filtration, washed, dried to remove traces of moisture from the solution, and weighed. The amount of analyte in the original sample can then be calculated from the mass of the precipitate and its chemical composition.
65210 (±)-α-Methoxyphenylacetic acid puriss. p.a., for gravimetric determination of Na, ≥99.0% (T) pricing
31550 2,3-Butanedione monoxime puriss. p.a., for colorimetric det. of urea, ≥99.0% (N) pricing
07090 2-Aminobenzothiazole purum p.a., for gravimetric determination of Hg, for spectrophotometric det. of Pd, ≥98.0% (NT) pricing
H36206 2-Hydroxy-4-methoxybenzophenone 98% pricing
55550 2-Hydroxy-4-methoxybenzophenone purum, UV-absorber, ≥96.0% (NT) pricing
41540 3,5-Dimethylpyrazole BioChemika , ≥99.0% (GC) pricing
73560 4-Nitrophenol puriss. p.a., indicator (pH 5.6-7.6), ≥99.5% (HPLC) pricing
63470 DL -Mandelic acid puriss. p.a., for gravimetric determination of Zr, ≥99.0% (T) pricing
09935 Ammonium pyrrolidinedithiocarbamate purum p.a., ≥98.0% (NT) pricing
11800 Barium perchlorate hydrate puriss. p.a., ≥99.0% (KT) pricing
161705 Di-2-pyridyl ketone oxime 98% pricing
40400 Dimethylglyoxime disodium salt octahydrate purum p.a., for precipitation of metals, ≥97.0% (NT) pricing
33133 Dimethylglyoxime puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99% (gravimetric) pricing
61490 Lanthanum(III) chloride hydrate puriss. p.a., ≥98.5% (calc. based on dry substance, AT), ~7 mol/mol water pricing
83352 Mercury(II) acetate puriss. p.a., ACS reagent, ≥99.0% (precipitation titration) pricing
60500 Potassium hexahydroxoantimonate(V) p.a., ≥99% (as KSbO3 , based on calcined substance) pricing
30533 Potassium iodide Trace SELECT® , ≥99.999% (metals basis) pricing
22560 Quinaldic acid puriss. p.a., for gravimetric determination of Cd, Cu, Fe(II) (colorimetr.), Te, Zn, ≥99.0% (HPLC/T) pricing
R4126 Reinecke salt pricing
83700 Rhodanine puriss. p.a., for spectrophotometric det. of gallic acid, ≥99.0% (HPLC) pricing
71510 Sodium dimethyldithiocarbamate hydrate puriss. p.a., ≥99.0% (NT), 1-2 mol/mol water pricing
71975 Sodium sulfide hydrate puriss. p.a., 32-38% (RT) pricing
72016 Sodium tetrakis(4-fluorophenyl)borate dihydrate purum, ≥97.0% (NT) pricing
88450 Thioacetamide puriss. p.a., for the precipitation (of heavy metals), ACS reagent, ≥99.0% (RT) pricing
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