Since excessive nitrite is a serious carcinogen to human beings, it is necessary to generate a convenient and sensitive means for its detection. Owing to this point, thus, UiO-66-NH₂ had been successfully employed as a fluorescence turn-off probe for the detection of NO₂⁻ through diazotization and reduction. It could detect nitrite sensitively and selectively under acidic conditions (pH = 1.0) at room temperature. The linear range of nitrite was 0–10 mM, the detection limit was 77 μM, and a short response time (120 s) had been displayed by UiO-66-NH₂. Whilst, it could specifically recognize nitrite and would hardly be affected by other possibly coexistent interfering substances. Furthermore, quantitative analysis of three real samples also confirmed the reliability and sensitivity of this probe. All these results had shown that the detecting method of UiO-66-NH₂ to nitrite was simple in operation, and mild in reaction condition.

由于过量的亚硝酸盐是对人类的严重致癌物，因此有必要产生一种方便而灵敏的检测手段。由于这一点，从而，UIO-66-NH ₂已被成功地用作用于检测NO的荧光关断探头₂ ^-通过重氮化和还原。它可以在室温下酸性条件下（pH = 1.0）灵敏而选择性地检测亚硝酸盐。亚硝酸盐的线性范围为0-10毫米，检出限为77  μ M，并且一个短的响应时间（120秒）已被UIO-66-NH显示₂。同时，它可以特异性识别亚硝酸盐，几乎不受其他可能共存的干扰物质的影响。此外，对三个真实样品的定量分析也证实了该探针的可靠性和敏感性。所有这些结果表明，UiO-66-NH ₂对亚硝酸盐的检测方法操作简单，反应条件温和。