寻找一种更简单的方法来分析溶解硝酸盐中的¹⁵N和¹⁸O?

Excessive nitrate levels in the environment can cause devastating environmental, economic, and health impacts. In the environment, excess nitrate can runoff into surface waters increasing nutrient availability and causing toxic algal blooms and eutrophication. Ultimately, this can lead to hypoxia and vast marine dead zones in costal areas and at sea. This can destroy local fishing industries and ruin picturesque waterside locations which depend on tourism.  

Nitrates can leach into groundwater supplies from farming of livestock or sewerage faults, polluting aquifers and drinking wells. If local populations consume this water with inadequate treatment to remove nitrates there is increased risk of certain cancers and devastating impacts on foetal development during pregnancy generating large costs in healthcare as well as in necessary water treatments. 

N₂O is a potent greenhouse gas, providing approximately 300 times more warming potential than CO₂. Many natural processes emit N₂O in to the atmosphere, but globally, about 40% of emissions come from anthropogenic activity such as agriculture, burning of fossil fuels and industrial processes. As well as exacerbating global climate change, N₂O in the atmosphere has also been shown to cause respiratory illnesses.