Quotation for standard reference materials for nitrogen content determination

Nitrogen content standard substanceRefers to compounds or mixtures with precise known nitrogen content, used to calibrate the accuracy and precision of nitrogen content determination methods

Nitrogen content standard substancePurpose:

Standard substance for nitrogen content determination, produced by the Institute of Petrochemical Science.

Used for the determination of nitrogen content in petrochemical products by chemiluminescence method.

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The following concentrations of light oil can be selected: 0.5, 1.0, 3.0, 5.0, 10.0, 30.0, 50.0100, 300, 500, 1000 mg/L (or ng/uL);

The following concentrations of heavy oil can be selected: 5.0, 10.0, 50.0100, 300, 500, 1000 (ppm)

【 Storage conditions 】 Avoid light

‌‌Accurate nitrogen contentThe nitrogen content of the standard substance has been rigorously measured and validated to ensure its accuracy and precision, in order to guarantee the reliability of the calibration results1.

1. ‌Good stabilityStandard substances should have good stability and be less susceptible to changes caused by environmental factors, ensuring the reproducibility of calibration results1.

2. ‌Wide range of contentThe nitrogen content of standard substances should cover the range of nitrogen content of common samples to meet the measurement needs of different samples1.

These substances have been widely measured and validated for their nitrogen content, and can be used to calibrate different nitrogen content measurement methods1In addition, there are nitrogen content reference materials specifically designed for oil products, such as those for light and heavy oils, with nitrogen content ranging from 0.2 mg/L to 3000 mg/kg