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2003•Unpublished venueRequires access

Study on the Determination of Nitrite of Celery by a New UV Spectrophotometric Method

Xiaolan Wang

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Abstract

The nitrite content of green vegetables processed is different with the different time. To make a test on celery,a new fairly selective and simple UV spectrophotometic method for the determination of nitrite is developed. Nitrite reacts with neutral red in acidic medium (HCL) to form a product with maximum absorbance at 360 nm. The analytical results of nitrite in celery products are in agreement with the results obtained by the N-(1-naphthy1) ethyeenediamine dihydrochloride photometric method.

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What this paper is about

The nitrite content of green vegetables processed is different with the different time. To make a test on celery,a new fairly selective and simple UV spectrophotometic method for the determination of nitrite is developed. Nitrite reacts with neutral red in acidic medium (HCL) to form a product with maximum absorbance at 360 nm. The analytical results of nitrite in celery products are in agreement with the results obtained by the N-(1-naphthy1) ethyeenediamine dihydrochloride photometric method.

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Available abstract

The nitrite content of green vegetables processed is different with the different time. To make a test on celery,a new fairly selective and simple UV spectrophotometic method for the determination of nitrite is developed. Nitrite reacts with neutral red in acidic medium (HCL) to form a product with maximum absorbance at 360 nm. The analytical results of nitrite in celery products are in agreement with the results obtained by the N-(1-naphthy1) ethyeenediamine dihydrochloride photometric method.

Key concepts: Nitrite, Absorbance, Chemistry, Chromatography, Nitrate, Organic chemistry

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