Определение азота в фармацевтически активных пептидах
Определение азота и общего белка в фармацевтических препаратах описано в Европейской фармакопее (Евр. фарм.) в разделах 2.5.9 и 2.5.33 (метод 7) [1, 2]. В Фармакопее Соединенных Штатов Америки (Фарм. США) определение азота описано в разделе 461 [3]. В этих фармакопеях указаны разные методики титрования. В Евр. фарм. описано обратное титрование в присутствии индикаторного смешанного раствора метилового красного, а в Фарм. США описано потенциометрическое титрование с использованием борной кислоты.
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Сопутствующие приборы
KjelMaster K-375 & KjelSampler K-376 / K-377
Perform potentiometric and colorimetric titrations with the KjelMaster K-375 and a free choice of methods at perfect usability. Gain high throughput, more automation and sophisticated data management for convenient nitrogen and protein analysis.
Scrubber K-415
With four steps to occupational safety, Scrubber K-415 provides you with maximal protection. The unit neutralizes poisonous fumes and reaction gases and minimizes use of cooling water to safeguard both you and the environment.
SpeedDigester K-425 / K-436 / K-439
Set new standards for digestion speed, flexible use and result reproducibility with the IR SpeedDigester. Achieve higher sample throughput for nitrogen determination by Kjeldahl digestion and multiply functionality with this entry level IR digester.
KjelMaster K-375 & KjelSampler K-376 / K-377
Perform potentiometric and colorimetric titrations with the KjelMaster K-375 and a free choice of methods at perfect usability. Gain high throughput, more automation and sophisticated data management for convenient nitrogen and protein analysis.
KjelMaster K-375 & KjelSampler K-376 / K-377
Perform potentiometric and colorimetric titrations with the KjelMaster K-375 and a free choice of methods at perfect usability. Gain high throughput, more automation and sophisticated data management for convenient nitrogen and protein analysis.
Scrubber K-415
With four steps to occupational safety, Scrubber K-415 provides you with maximal protection. The unit neutralizes poisonous fumes and reaction gases and minimizes use of cooling water to safeguard both you and the environment.
