Determination of Aldehydes in the Presence of Acids, Acetals, and Ketones, Using a Silver Oxide-<i>tert</i>-Butylamine Complex.

Mayes, J. A.; Kuchar, E. J.; Siggia, Sidney.

doi:10.1021/ac60210a069

Cited by 10 publications

(6 citation statements)

References 9 publications

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“…A silver oxide-terf-buty lamine complex was employed by Mayes, Kuchar, and Siggia (412) to determine aldehydes in the presence of acids, acetals, and ketones.…”

Section: Polarography Was Employed Bymentioning

confidence: 99%

Essential Oils and Related Products

Guenther¹,

Rogers²,

Gilbertson³

et al. 1965

Anal. Chem.

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This tenth of specifications from 224 to 245 as of January 1965. The natural products monographs added since the last revieware: No. 229 Oil cedarwood atlas 238 Oleoresin cloves 239 Oleoresin paprika 240 Oleoresin black pepper 241 Oleoresin mace 242 Oleoresin celery 243 Oleoresin ginger 244 Oleoresin capsicum 245 Oleoresin red pepper Specifications for the follow-ing aromatics were issued : No. 225 Linalyl acetate-synthetic 226 Linalool-synthetic 227 Citronellal 228 Methyl benzyl acetate 230 Ethyl heptoate 231 p-Cresyl phenyl acetate 232 p-Cresyl isobutyrate 233 Terpinyl propionate 234 Santalol 235 Decahydro beta naphthol 236 Ethyl salicylate 237 Benzyl isoeugenol Specifications for three essential oils and three aromatic chemicals were rewritten: No. 14 Oil citronella Java type 23 Oil patchouly 32 Oil spruce 21 Indole 27 Amyl salicylate 28 Benzyl acetate Specifications were revised for six essential oils and six aromatic chemicals under R-10 to R-13. No. 2 Oil bois de rose Brazilian 7 Oil lemongrass 49 Oil geranium reunion 50 Oil Siberian fir needle 137 Oil galbanum 215 Oil bitter almond ffpa 26 Aldehyde C-10 35 Dimethyl anthranilate 109 Aldehyde C-16 (so-called) 127 Cedryl acetate 203 Methyl cinnamic alcohol 211 Anisyl acetate New test procedures w-ere added to Notes for Specifications and Standards:l-ID-3 Gas Chromatographic Analysis.A determination based on ID-3 was added toNo. 16 Geranoil.The Analyst (157), compared drying agents for essential oils and found MgSCh to be superior.Individual Essential Oils. From Abies sibirica oil Porsch and Farnow (552) isolated tricyclene and established its structure. Sesquiterpenes from the same plant were identified by Chirkova and Pentegova (93).The oil of Achryocline satureioides was investigated by Ricciardi, Cassano, and Burgos (573) and some of its constituents were identified.The composition of agarwood oil was examined by Jain, Maheshwari, and Bhattacharyya (294), and Maheshwari et al. (391, 392) isolated and characterized several sesquiterpenic furans from the oil.Benzyl acetate and benzoate were found in the oil from Albizzia lebbeck flowers by Jain and Mishra (293).The properties of the oil of Alpinia galanga were ascertained by Trabaud (716) who identified several of its main constituents. Nigam and Radhakrishnan (483,484) reported quite different properties for an oil from the same

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“…A silver oxide-terf-buty lamine complex was employed by Mayes, Kuchar, and Siggia (412) to determine aldehydes in the presence of acids, acetals, and ketones.…”

Section: Polarography Was Employed Bymentioning

confidence: 99%

Essential Oils and Related Products

Guenther¹,

Rogers²,

Gilbertson³

et al. 1965

Anal. Chem.

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“…Fractionation of the products was achieved by redissolution of the samples in 0.05 M NaNO 3 followed by preparative gel-permeation chromatography at 10 °C, as described below. The terminal aldehyde groups in tel -PVA were assayed using silver oxide− tert -butylamine reagent, as described elsewhere 2 Synthesis of Telechelic PVA ( 5 ) …”

Section: Methodsmentioning

confidence: 99%

Self-Assembly in Aqueous Solutions of Poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide)-b-poly(vinyl alcohol)

and

Temchenko

1999

Langmuir

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A novel class of self-assembling amphiphilic polymers is introduced whereby a Pluronic poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer is end-modified by poly(vinyl alcohol) (PVA). The copolymer is temperature-sensitive in aqueous solutions due to the temperature-dependent water solubility of PPO. The Pluronic-PVA copolymers show a dramatic temperature dependency of their aggregation. The attachment of PVA segments to the Pluronic molecule increases its critical aggregation temperature. At concentrations of 10% and higher and temperatures above 10-20 °C, the Pluronic-PVA aqueous solutions yield gels. The gelation and formation of large aggregates coincide, indicating that the gelation is caused by the formation of aggregates with interpenetrating coronas. A decline in the power law relaxation exponent of the light scattering is observed upon gelation, which is due to the nonergodicity of the gels.

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“…Reagents. The modified Tollen's reagent previously described by Mayes et al (6) was used in all cases except where otherwise stated and is prepared as follows: 5.00 ml of 0.50M AgNOa are pipetted into a 50-ml beaker; exactly 1.00 ml of ZM NaOH is added and the contents are agitated. Sufficient 1:1 NH3 (specific gravity O.DOpHaO is then added dropwise to dissolve all of the Ag20 present.…”

Section: Methodsmentioning

confidence: 99%

“…This reaction has been recognized as being specific for aldehydes although some ketones andhydroxy ketones have been reported to react to various degrees (1, 2). The use of solid silver oxide (3, 4), silverammonia complexes (Tollen's reagent) (5) and silver-tertbutylamine complexes (6) have resulted in successful titrimetric procedures for the determination of millimolar quantities of aldehydes. Radiochemical methods (7,8) have included the use of 110mAgNO3 to prepare the reagent and measurement of the reduced 110mAg produced in the reaction, or reaction of the silver metal with K131I and KIOs and radioassay of the resultant Ag131I.…”

mentioning

confidence: 99%

Atomic absorption method for determining micromolar quantities of aldehydes

Oles¹,

Siggia²

1974

Anal. Chem.

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The quantitative analysis of aldehydes using atomic absorption spectrophotometry is described. Silver-ammonia complex (Tollen's reagent) is used to oxidize aldehydes to their corresponding carboxylic acids. The reduced silver is separated from excess reagent, dissolved in nitric acid, and the resultant solution is analyzed for silver content using conventional atomic absorption spectrophotometry. A Hammett relationship for substituted benzaldehydes is shown to exist and its use enables an estimation of the reactivities of substituted benzaldehydes not reported in this study. The effects of multiple substituents are additive and substituted benzaldehydes with a net Hammett constant value of -0.2 do not react quantitatively by this procedure. One calibration curve was found to be suitable for all of the aldehydes encountered. The relative standard deviations are 1.2-5.8% in the 1-4 pmol/ ml range.

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Determination of Aldehydes in the Presence of Acids, Acetals, and Ketones, Using a Silver Oxide-tert-Butylamine Complex.

Cited by 10 publications

References 9 publications

Essential Oils and Related Products

Essential Oils and Related Products

Self-Assembly in Aqueous Solutions of Poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide)-b-poly(vinyl alcohol)

Atomic absorption method for determining micromolar quantities of aldehydes

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