Determination of traces of low aliphatic amines by gas chromatography

Kuwata, Kazuhiro; Yamazaki, Yoshiaki; Uebori, Michiko

doi:10.1021/ac50062a051

Cited by 38 publications

(27 citation statements)

References 7 publications

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“…This limit of acceptability is apparently lower than those obtained with the microbiological analyses, where an apparent storage life of 20 days was observed. This difference might have been the result of the use o:f a calorimetric method to obtain the TVN value; older calorimetric procedures (Dyer, 1945) have been replaced by chromatographic methods with several advantages (Kuwata et al, 1980;Gill and Thompson, 1984). Our results are higher than those of Lannelongue et al (1982) for finfish fillets (Archosargus probatocephalus); these differences could probably be due to the analytical method used.…”

Section: Tvn Valuementioning

confidence: 99%

Bulk Storage of Cod Fillets and Gutted Cod (Gadus morhua) Under Carbon Dioxide Atmosphere

Villemure

Simard

Picard

1986

Journal of Food Science

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The storage-life of bulk-stored cod under COZ atmosphere and air were compared. Gutted fish or fillets were distributed in bulk, among coolers containing 100% air or 25% C02-75% N2, which were then stored at 0~ 1°C for 20 days. Sensory assessments and chemical tests (pH, total volatile nitrogen) were carried out to estimate the raw-state quality and the bacterial spoilage. An important difference was observed between the storage life of cod under carbon dioxide atmosphere and air; microbiological and sensory assessments suggested a storage life exceeding 20 days and total volatile nitrogen results about 6-7 days under gas atmosphere, which was nearly twice as long as in air. Storage in CO2 atmosphere was effective in inhibiting the growth of some bacteria on the fish, thereby contributing to the significant extension of the shelf life of the product.

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Section: Tvn Valuementioning

confidence: 99%

Bulk Storage of Cod Fillets and Gutted Cod (Gadus morhua) Under Carbon Dioxide Atmosphere

Villemure

Simard

Picard

1986

Journal of Food Science

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“…Sampling of amines from air is usually carried out by absorption using impinger flasks containing (acidified) aqueous solutions (6,7) or sorption on solid sorbents (8,9). The inherent preconcentration of these sampling methods makes it possible to lower the detection limits of amines to the low parts per billion by volume (ppbv) concentration range in sampled air.…”

Section: Introductionmentioning

confidence: 99%

“…Most analytical procedures reported for the analysis of amines feature separation methods. Gas chromatography (GC) is widely used in the analysis of amines owing to its simplicity, high resolving power, good sensitivity, short analysis time, and relatively low cost (2,(8)(9)(10)(11)(12)(13)(14)(15). In some cases, determination of amines can be carried out by direct injection of aqueous or salted solutions (7,16).…”

Section: Introductionmentioning

confidence: 99%

Determination of Amines in the Presence of Excess Ammonia by Ion Chromatography-Mass Spectrometry

Hermans

Jonkers

Bokx

2010

Journal of Chromatographic Science

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A new method for the simultaneous determination of several amines in the presence of an excess of ammonia by ion chromatography-mass spectrometry detection was developed. Current methods using ion chromatography with suppressed conductivity detection are not selective enough to determine small amines at the required level of 10 µg/L or preferably lower in the presence of a large excess of ammonia (~1 mg/L) without resorting to time-consuming sample pre-treatment techniques. By using mass spectrometric detection, which is capable of resolving eluting compounds on their m/z values, an additional dimension of confirmation is added to the analysis. Detection based on the analytes m/z value overcomes problems such as co-elution or background interferences that complicate the quantification when using conductivity detection. The optimal conditions for mass spectrometry detection of amines in the presence of an excess of ammonia were investigated by a four-factor central composite design. The four factors investigated were scan time, cone voltage, probe temperature, and needle voltage. Evaluation of the obtained experimental data showed that detection limits were up to a factor of 100 lower when using mass spectrometry as the detection technique instead of the conventional suppressed conductivity detection. Detection limits of 1 µg/L and lower can be achieved for the six amines investigated in the presence of a large excess of ammonia (~1 mg/L).

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“…It is also important to note that picric acid is highly flamable and may detonate if exposed to heat or shock when in a dry state. Recently, more specific and accurate methods have been developed, including gas-liquid chromatography (Ruiter, 1973;Lundstrom and Racicot, 1983;Tokunaga et al 1977;Kuwata et al, 1980), specific gas sensor (Storey et al 1984), specific electrode (Chang et al 1976), high pressure liquid chromatography (Gill and Thompson, 1984) and enzyme assay (Wong and Gill, 1987). While being more rapid than enumeration of spoilage organisms, these chemical methods require specialized laboratory equipment, highly trained personnel, and are either too expensive or time-consuming for the routine screening of large numbers of fish.…”

Section: Introductionmentioning

confidence: 99%

A Diagnostic Test Strip for the Semiquantitative Determination of Trimethylamine in Fish

Wong

Bartlett

Gill

1988

Journal of Food Science

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A diagnostic test strip assay for trimethylamine (TMA) was developed for the rapid evaluation of microbiological quality of seafood. The method is based on trimethylamine dehydrogcnase and is specific for TMA. Compounds such as trimethylamine oxide, dimethylamine, monomethylamine, and ammonia did not interfere with the mcasurement of TMA. The entire procedure required less than 5 min at room temperature. Visual comparison of unknown samples to a set of trimethylamine standards enabled the scmiquantitative analysis in the range of 0.2 to 5 wg trimethylamine nitrogen. The method enabled the rapid evaluation of seafood quality and correlated well with the traditional spectrophotometric procedure for the determination of TMA.

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Determination of traces of low aliphatic amines by gas chromatography

Cited by 38 publications

References 7 publications

Bulk Storage of Cod Fillets and Gutted Cod (Gadus morhua) Under Carbon Dioxide Atmosphere

Bulk Storage of Cod Fillets and Gutted Cod (Gadus morhua) Under Carbon Dioxide Atmosphere

Determination of Amines in the Presence of Excess Ammonia by Ion Chromatography-Mass Spectrometry

A Diagnostic Test Strip for the Semiquantitative Determination of Trimethylamine in Fish

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