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Sodium Dehydroacetate

There is a recent trend towards simultaneous CE separations of several classes of food additives. This has so far been applied to soft drinks and preserved fruits, but could also be used for other food products. An MEKC method was published (Lin et al., 2000) for simultaneous separation of intense sweeteners (dulcin, aspartame, saccharin and acesulfame K) and some preservatives (sorbic and benzoic acids, sodium dehydroacetate, methyl-, ethyl-, propyl- and isopropyl- p-hydroxybenzoates) in preserved fruits. Ion pair extraction and SPE cleanup were used prior to CE analysis. The average recovery of these various additives was 90% with good within-laboratory reproducibility of results. Another procedure was described by Frazier et al. (2000b) for separation of intense sweeteners, preservatives and colours as well as caffeine and caramel in soft drinks. Using the MEKC mode, separation was obtained in 15 min. The aqueous phase was 20 mM carbonate buffer at pH 9.5 and the micellar phase was 62 mM sodium dodecyl sulphate. A diode array detector was used for quantification in the range 190-600 nm, and limits of quantification of 0.01 mg/1 per analyte were reported. The authors observed that their procedure requires further validation for quantitative analysis. [Pg.125]

A paired-ion, reversed-phase high-performance liquid chromatographic method was developed for the simultaneous determination of sweeteners (dulcin, saccharin-Na, and acesulfame-K), preservatives (sodium dehydroacetate, SA, salicyclic acid, BA, succinic acid, methyl-para-hydroxybenzoic acid, ethyl-para-hydroxybenzoic acid, n-propyl-para-hydroxybenzoic acid, n-butyl-para-hydroxybenzoic acid, and isobutyl-para-hydroxybenzoic acid), and antioxidants (3-tertiary-butyl-4-hydroxyanisole and tertiary-butyl-hydroquinone). A mobile phase of acetonitrile-50 ml aqueous tr-hydroxyisobutyric acid solution (pH 4.5) (2.2 3.4 or 2.4 3.6, v/v) containing 2.5 mM hexadecyltrimethylammonium bromide and a Clg column with a flow rate of 1.0 ml/min and detection at 233 nm were used. This method was found to be very reproducible detection limits ranged from 0.15 to 3.00 p,g. The retention factor (k) of each additive could be affected by the concentrations of hexadecyltrimethylammonium bromide and a-hydroxyisobu-tyric acid and the pH and ratio of mobile phase. The presence of additives in dried roast beef and sugared fruit was determined. The method is suitable for routine analysis of additives in food samples (81). [Pg.594]

Sodium Dehydroacetate occurs as a white or nearly white powder. One gram dissolves in about 3 mL of water, in 2 mL of propylene glycol, and in 7 mL of glycerin. [Pg.411]

SYNS DEHYDROACETIC ACID, SODIUM SAI.T DHA-SODIUM HARVEN 4-HEXENOIC ACID, 2-ACETYL-5-HYDROXY-3-OXO, A-LACTONE, SODIUM derivative 3-(l-HYDROXYETHYLIDENE)-6-METHYL-2H-PYRAN-2,4(3H)-DIONE, SODIUM SALT SODIUM DEHYDROACETATE (FCC)... [Pg.1250]

Dehydroacetic acid sodium salt. See Sodium dehydroacetate... [Pg.1184]

Fomrez C-2. See,Stan nous octoate Fomrez SUL-3. See Dibutyltin diacetate Fomrez SUL-4. See Dibutyltin dilaurate Fongarid. See Furalaxyl Fongasel. See Sodium dehydroacetate Fongrapal PS SR. See Sodium petroleum sulfonate Fonofos CAS 944-22-9... [Pg.1837]

Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo-, A-lactone, sodium deriv.. See Sodium dehydroacetate... [Pg.2024]

H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-, monosodium salt. See Sodium dehydroacetate Pyranine. See Solvent green 7 Pyranine cone.. See D C Green No. 8 Pyran-2-methanol, tetrahydro- 2H-Pyran-2-methanol, tetrahydro-. See Tetrahydropyran-2-methanol... [Pg.3784]

Sodium DEDT. See Sodium diethyidithiocarbamate Sodium dehydroacetate CAS 4418-26-2 EINECS/ELINCS 224-580-1... [Pg.4009]

Sodium 1-(3,4-dihydro-6-methyl-2,4-dioxo-2H-pyran-3-ylidene) ethanolate. See Sodium dehydroacetate... [Pg.4014]

Tris (2,3-epoxypropyl) isocyanurate. See Triglycidyl isocyanurate Trisept B. See Butyl paraben Trisept E. See Ethylparaben Trisept M. See M ethyl paraben Trisept P. See Propylparaben Trisept SDHA. See Sodium dehydroacetate Tris (ethylenediamine) cadmium dihydroxide CAS 14874-24-9... [Pg.4596]

Tris (propyleneglycol) phosphine. See Tris (dipropyleneglycol) phosphite Tristabii . See Trichloroethylene Tristat iU. See Imidazolidinyl urea Tristat K. See Potassium sorbate Tristat SDHA. See Sodium dehydroacetate Tristat. See Sorbic acid... [Pg.4605]

Silver acetylmethionate Silver sulfate Sodium p-chloro-m-cresol Sodium dehydroacetate Sodium iodide... [Pg.4829]

Myristalkonium chloride antimicrobial, leather Sodium o-phenylphenate antimicrobial, leather goods p-Chloro-m-cresol antimicrobial, lipsticks Sodium dehydroacetate antimicrobial, liq. detergents Sodium hydroxymethylglycinate antimicrobial, liq. soaps Chlorhexidine digluconate antimicrobial, make up foundations Willow (Salix alba) bark extract antimicrobial, meat... [Pg.4830]

Potassium N-methyIdithiocarbamate Propamocarb hydrochloride Pyridine Quaternium-18 methosulfate Salicylanilide Salicylic acid Sodium benzoate Sodium dehydroacetate Sodium dimethyidithiocarbamate Sodium fluoride... [Pg.5338]

Sodium dehydroacetate Sodium dodecylbenzenesulfonate Sodium gluconate Sodium rosinate Stearyl stearate Sulfated castor oil Sulfolane Tallow acid Tetrahydrofurfuryl oleate Tetrahydroxypropyl ethylenediamine... [Pg.5535]

Potassium propionate Potassium propylparaben Potassium salicylate Potassium sorbate Potassium sulfite Propionic acid Propyl benzoate Propylparaben Quatemium-15 Salicylic acid Silver borosilicate Silver chloride Silver magnesium aluminum phosphate Sodium benzoate Sodium bisulfite Sodium butylparaben Sodium dehydroacetate Sodium ethylparaben Sodium formate Sodium hydroxymethylglycinate Sodium iodate Sodium metabisulfite Sodium methylparaben Sodium paraben Sodium o-phenylphenate... [Pg.5563]

Potassium pentachlorphenate , Quatemium-15 Salicylic acid Sodium dehydroacetate Sodium fluoride... [Pg.5565]

Sodium dehydroacetate Trisept SDHA Tristat SDHA Unisept DSA... [Pg.6220]

Sodium benzoate Sodium pentachlorophenol Sodium 2-pyridinethiol-l-oxide Sodium sorbate Sodium dehydroacetate l,2-Dibenzisothiazolin-3-one... [Pg.95]

LC-UVA, C18 column at 40 °C with gradient H20 MeCN containing 50 mM NaC104and 5 mM tetramethyl ammonium bromide pH 3.0 as mobile phase LC-UVA, C18 column with Me0H H20 as mobile phase for hydroxybenzoates and MeCNxitrate phosphate buffer pH 3.0 for sodium dehydroacetate... [Pg.223]

See other pages where Sodium Dehydroacetate is mentioned: [Pg.903]    [Pg.344]    [Pg.903]    [Pg.1032]    [Pg.411]    [Pg.1250]    [Pg.1881]    [Pg.512]    [Pg.1141]    [Pg.1141]    [Pg.700]    [Pg.1196]    [Pg.4642]    [Pg.5474]    [Pg.5567]    [Pg.6846]    [Pg.7054]    [Pg.96]    [Pg.582]    [Pg.26]    [Pg.14]    [Pg.344]    [Pg.226]   
See also in sourсe #XX -- [ Pg.411 ]

See also in sourсe #XX -- [ Pg.102 ]

See also in sourсe #XX -- [ Pg.96 ]



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