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| Acidity in Ketchup |
| Log #8 Titration Application Note |
| Total acidity of ketchup is determined using the first derivative titration technique. NaOH titrant is added to a volume of deionized water containing an accurately weighed 1g ketchup sample and an Orion RossTM Combination pH electrode. The Orion 960 Autotitrator PLUS determines the endpoint and calculates the total acidity of each sample. |
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