# Aiqs-db: Revolutionizing the Simultaneous Analysis of Organic Compounds
## 2 AIQS-DB Application
LC/MS and LC-TOF-MS are less frequently used than GC/MS, but up to 508 compounds have been constructed using these methods [26]. In total, both methods can analyze 1478 compounds. The number of compounds detected depends on the sample matrix. For example, in wastewater matrices analyzed by GC/MS in Japan, [PERSON] was able to detect the presence of 474 compounds in the influent wastewater soluble fraction [19]. In dust samples collected in Vietnam, [PERSON] et al. identified 288 compounds [16], and [PERSON] et al. identified 277 compounds in flood water samples [36]. Almost 200 compounds can be detected in sediment samples [10; 12; 38]. For samples analyzed by LC, around 201/484 compounds can be detected in wastewater samples [15]. AIQS-DB on LC/MS and LC-TOF-MS is often able to identify fewer compounds, which may be why studies using AIQS-LC are less common than those using AIQS-GC. The number of identified compounds demonstrates that AIQS-DB is very useful for the simultaneous determination of pollutants in the environment. \begin{table}
\begin{tabular}{p{56.9 pt} p{56.9 pt} p{56.9 pt} p{56.9 pt} p{56.9 pt} p{56.9 pt}} \hline \hline
**Year** & **Instrument** & **Compound Number** & **Matrix** & **Main Objective** & **Ref.** \\ \hline
2018 & GC-MS LC-MS & 109/1250 & Wastewater wastewater wastewater treatment system & Assessment of the efficiency of wastewater treatment system & [13] \\ \hline
2018 & GC-MS & Used and OCP & Soils and sediments & Analytical method development & [35] \\ \hline
2017 & GC-MS & 277/940 & Floodwater & Comprehensive analysis & [36] \\ \hline
2016 & GC-MS LC-MS & 78/1300 & Groundwater & Comprehensive screening & [8] \\ \hline
2016 & GC-MS LC-MS & 80/1300 & Groundwater & Comprehensive screening & [9] \\ \hline
2015 & GC-MS LC-MS & 227/1300 & River water & Water monitoring & [37] \\ \hline
2015 & GC-MS & 74/940 & Groundwater & Comprehensive screening & [7] \\ \hline
2014 & GC-MS LC-MS & 185/940 & River sediment & Comprehensive screening & [38] \\ \hline
2014 & GC-MS LC-MS & 195/940 & Sediment & Comprehensive screening & [12] \\ \hline
2014 & GC-MS LC-MS & 95/940 & River water & Comprehensive screening & [39] \\ \hline
2013 & GC-MS LC-MS & 184/888 & Sediment & Comprehensive screening & [10] \\ \hline
2012 & GC-MS LC-MS & 914 & Sediment & Analytical method development & [11] \\ \hline
2011 & GC-MS LC-MS & 114 & N.a. & Verification of analytical method & [40] \\ \hline
2010 & GC-MS LC-MS & 95/940 & River water & Comprehensive screening & [2] \\ \hline
2009 & GC-MS LC-MS & 188/882 & River water & Comprehensive screening & [41] \\ \hline  & & 13/672 & River water & & \\ \multirow{2}{*}{GC-MS LC-MS } & 56/672 & Soil & & & \\ \multirow{2}{*}{CB-MS LC-TOF-MS} & 150/672 & Spinach & & & \\ \multirow{2}{*}{CB-MS LC-TOF-MS} & 150/672 & Orange & & & \\ \hline \hline \end{tabular} N.a.: Not available.  
\end{table} 
Table 1: _Cont._In the nearly 20 years since [PERSON]'s study was published, AIQS-DB has only been applied in studies on environmental samples collected in a few countries, such as Australia [3,13], China [2,8,14,27], Japan [10,12,39], Malaysia [17], Serbia [4], and Vietnam [5,7,28,31,32,33,36,38]. The application of AIQS-DB in environmental studies should be expanded to more countries.