abstract |
The present invention relates to a kind of fluorescent chemicals and its applications in detection trace nitrobenzene substances, it is characterised in that the fluorescent chemicals general formula are as follows:nn In formula, the positive integer that n1 and n3 are 1-50, n2 is 0-50 positive integer, and n is the arbitrary integer more than or equal to 1. The trace nitrobenzene substances lower limit of measurement is up to 0.1ppm. |