Method for quickly detecting whether nitrite content of processing meat product exceeds standard or not
The invention discloses a method for quickly detecting whether the nitrite content of a processing meat product exceeds the standard or not. The method comprises the following steps: 1) weighing 0.1 to 0.5 g of aminobenzene sulfonic acid, adding 50 mL of hydrochloric acid at the concentration of 15%...
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| creator | HUANG SHUXIA CHEN YUJIE LIU MINMIN CHEN QIAO OU GUODENG TAN JIE |
| description | The invention discloses a method for quickly detecting whether the nitrite content of a processing meat product exceeds the standard or not. The method comprises the following steps: 1) weighing 0.1 to 0.5 g of aminobenzene sulfonic acid, adding 50 mL of hydrochloric acid at the concentration of 15% to 25% v/v and mixing uniformly; 2) weighing 0.05 to 0.15 g of naphthodiamide hydrochlorid, adding 50 mL of water and mixing uniformly; 3) cutting up a to-be-detected sample, adding a proper amount of water, absorbing liquid on the upper layer and filtering to obtain to-be-detected sample liquid; 4) adding a few drops of the solution obtained in the step 1) into the to-be-detected sample liquid in the step 3), adding a few drops of the solution obtained in the step 2), shaking up and observing the color after 1 minute. The method for quickly detecting whether the nitrite content of the processing meat product exceeds the standard or not, provided by the invention, is summarized by performing a large number of expe |
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The method comprises the following steps: 1) weighing 0.1 to 0.5 g of aminobenzene sulfonic acid, adding 50 mL of hydrochloric acid at the concentration of 15% to 25% v/v and mixing uniformly; 2) weighing 0.05 to 0.15 g of naphthodiamide hydrochlorid, adding 50 mL of water and mixing uniformly; 3) cutting up a to-be-detected sample, adding a proper amount of water, absorbing liquid on the upper layer and filtering to obtain to-be-detected sample liquid; 4) adding a few drops of the solution obtained in the step 1) into the to-be-detected sample liquid in the step 3), adding a few drops of the solution obtained in the step 2), shaking up and observing the color after 1 minute. 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The method comprises the following steps: 1) weighing 0.1 to 0.5 g of aminobenzene sulfonic acid, adding 50 mL of hydrochloric acid at the concentration of 15% to 25% v/v and mixing uniformly; 2) weighing 0.05 to 0.15 g of naphthodiamide hydrochlorid, adding 50 mL of water and mixing uniformly; 3) cutting up a to-be-detected sample, adding a proper amount of water, absorbing liquid on the upper layer and filtering to obtain to-be-detected sample liquid; 4) adding a few drops of the solution obtained in the step 1) into the to-be-detected sample liquid in the step 3), adding a few drops of the solution obtained in the step 2), shaking up and observing the color after 1 minute. 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The method comprises the following steps: 1) weighing 0.1 to 0.5 g of aminobenzene sulfonic acid, adding 50 mL of hydrochloric acid at the concentration of 15% to 25% v/v and mixing uniformly; 2) weighing 0.05 to 0.15 g of naphthodiamide hydrochlorid, adding 50 mL of water and mixing uniformly; 3) cutting up a to-be-detected sample, adding a proper amount of water, absorbing liquid on the upper layer and filtering to obtain to-be-detected sample liquid; 4) adding a few drops of the solution obtained in the step 1) into the to-be-detected sample liquid in the step 3), adding a few drops of the solution obtained in the step 2), shaking up and observing the color after 1 minute. The method for quickly detecting whether the nitrite content of the processing meat product exceeds the standard or not, provided by the invention, is summarized by performing a large number of expe</abstract><oa>free_for_read</oa></addata></record> |
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| title | Method for quickly detecting whether nitrite content of processing meat product exceeds standard or not |
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