221
during the injection may significantly reduce this, due to reduced contact with the
hot, active inlet surface (Stan and Goebel 1984; Grob 1988; Stan and Müller 1988;
Husmann et al. 1990; Wylie and Uchiyama 1996; Kovacevik et al. 2016). The evidence of the available literature data suggests that no general rules exist for deriving
optimal parameters for pulsed splitless injection. Literature data is still in lack of
information due to a large number of components that differ in their physical and
chemical properties, the various number of combinations, and instrument conditions.
7.2 Materials and Methods
7.2.1 Characteristics of the Investigated Area and Sampling
Groundwater samples were collected from the vulnerable area of the village Sachevo
(41°25′15.16″N; 22°41′58.87″E), 7 km from the town of Strumica, located in the
southeast part of the Republic of North Macedonia (Fig. 7.1). Groundwater is classified as highly vulnerable regarding the type of aquifer classified as young alluvium aquifer, poor technical condition, no flow regulation in the convey structures,
Fig. 7.1 The region of Strumica and the location of groundwater sampling for pesticide analysis,
the settlement of Sachevo
7 Improving Quantitative Analysis of GC-MS for Tracking Potential Contaminants…
during the injection may significantly reduce this, due to reduced contact with the
hot, active inlet surface (Stan and Goebel 1984; Grob 1988; Stan and Müller 1988;
Husmann et al. 1990; Wylie and Uchiyama 1996; Kovacevik et al. 2016). The evidence of the available literature data suggests that no general rules exist for deriving
optimal parameters for pulsed splitless injection. Literature data is still in lack of
information due to a large number of components that differ in their physical and
chemical properties, the various number of combinations, and instrument conditions.
7.2 Materials and Methods
7.2.1 Characteristics of the Investigated Area and Sampling
Groundwater samples were collected from the vulnerable area of the village Sachevo
(41°25′15.16″N; 22°41′58.87″E), 7 km from the town of Strumica, located in the
southeast part of the Republic of North Macedonia (Fig. 7.1). Groundwater is classified as highly vulnerable regarding the type of aquifer classified as young alluvium aquifer, poor technical condition, no flow regulation in the convey structures,
Fig. 7.1 The region of Strumica and the location of groundwater sampling for pesticide analysis,
the settlement of Sachevo
7 Improving Quantitative Analysis of GC-MS for Tracking Potential Contaminants…