Lab Matters Summer 2018 - Page 48

APHL 2018 Annual Meeting Poster Abstracts activities, including annual environmental laboratory conferences, laboratory standardization and method development workgroups, various trainings and communications to connect environmental laboratories. The second cooperative agreement was awarded in 2011 and concluded November 30, 2017. During this time, APHL continued to play a leadership role by serving as an environmental laboratory sector liaison, organizing conferences, task forces and work group meetings, disseminating and sharing information and providing technical assistance through training opportunities. This poster will explore the quantitative and qualitative measures of this nearly twelve year partnership between US EPA and APHL, as well as its ultimate effect on strengthening environmental laboratories. Presenter: Sarah Wright, MS, Association of Public Health Laboratories, Silver Spring, MD, Phone: 240.485.2730, Email: Gas Chromatography/Tandem Mass Spectrometry Analysis of Volatile Organic Compounds K. Castor, T. Kim and M. Koltunov, California Department of Toxic Substances Control, Pasadena, CA Our public health is greatly affected by our environment. Depending on where we live and work, we could be exposed to a variety of environmental contaminants; from the air we breathe, to the water we drink, to the soil on which we build our houses. At The Environmental Chemistry Laboratory in Pasadena, our mission statement includes striving to be leaders in analytical and environmental chemistry to protect California’s people and environment from toxic harm. One class of compounds that we are interested in from a public health aspect is volatile organic compounds (VOCs). VOCs are a group of compounds with low boiling points (below 200°C), low to medium water solubility and low molecular weights. They are anthropogenic (man-made) contaminants found in different matrices such as soil, waste water and indoor air. Due to their prevalence and toxic nature, the Public Health Goal (PGH) in drinking water for various VOCs are in the very low µg/L and pg/L range, which emphasizes the need to enable detection of these compounds at very low levels. We have developed a GC/triple quadrupole mass spectrometric (GC/MS-QQQ) analysis for VOC quantitation using a dynamic multiple reaction monitoring method (dMRM). Samples are introduced using a purge an \\[K\THY][܈]X[ۈۈ H0Y]ܙX][X]]H[Y[]]]H܈\\Y\[˂Y][ۘ[KH[[[^H \[[H[H[[[™܈YXY[[\\[YK\[\]\[H\܋ [YܛXH\\Y[وX”X[\۝ \Y[KKۙN L[XZ[]\[K\ܐ˘K݂\X]ܘ\K[[HX\XY]H[[\\›و\XY\’ˈ\܋Y[[K[݋[YܛXH\\Y[وX”X[\۝ \Y[KB\XXX[\ܙX]HYXYH\[\ۛY[ \[[ۈ\HH]H[ܚH[H^YB\Y]Hو[\ۛY[[۝[Z[[HHZ\HX]KH]\H[H[ۈXHZ[\\\˂]H[\ۛY[[[Z\HXܘ]ܞH[\Y[K\ PPUT[[Y\ NZ\[ۈ][Y[[Y\][HXY\[[[]X[[[\ۛY[[[Z\HX[YܛXx&\[H[[\ۛY[HX\KۙH\و\[]H\H[\\Y[HHXXX[\X\\XY\˂ܙ[ܝ\[ܙ[ܚ[H\XY\\H]\X˜[\HHX]H[ܙYY[[X[H[XXY\\Y[YܚX[\[ \Y[X[[[Y\X[[\H][˂Y\Z\\K\XY\[[XZ[[H[ \][ۋ[ܙ[ܝ\\[ \Hܘ[ Lو 8$YšX[\\^\HYY[XH]X[ۈو\B\[]\HY܈0Y][ˈY][ۘ[[[\\œ[Y\ۈ\\][ۈ[]X[ۈو\XY\\[\˜X]ܘ\H\YH[YHY]X]X܈ є B܈[Xۈ\\H]X܈ P K\HX\]Y\]XBYۘ[HZ]\Hܝ\܈ܚ[H]\[[HۈBXۙ[[ۙ\X][ۋ\[[[Hۙ\[[\\[YH[HY\]X[ۈ[Z] L0YKH]H][YH\B]XY\HX\XY]X TTTTJH[[\\܈][\B\[و[\\]\\H[[ZX][\HXX[ۂ[ۚ]ܚ[ TJHY][XHXYXX\]X[ۈقXX\[ \[[Z[][HXۙ[[ۙ\X][ۋ[Y][ۋHTHY][܈]X[ۈۈ H BH0YHZ[[Z^[[\\[HH\\[ˈB]X[]][ۈ\\YۈXYXX\[YY[][ۈ]\وXX[[]Hو[\\[\H\H\[Y][[^B[۝[Z[[˂\[\]\[H\܋ [YܛXH\\Y[وX”X[\۝ \Y[KKۙN L[XZ[]\[K\ܐ˘K݂][X][\X][ۜ]Y[T]XY[[[]\[[X[\[H[ܝ\[YܛXBˈܚ\Z] K]X\[ˈ\[YܛXH\\Y[قXX[\۝ \Y[KB\H[Y[ܛ[[X[\ TH\HH\H\›و[[\\[[ZX[YHوX[X[][]H[\H\X]Y]\X[\[Y^H[\Y\\ [\]]H]\\Y\X\H[YX[\XKXXۘ\Y\[HX\]Z]H[[X[X]HوYXB[^ Y[\][ۈT[[[]\\Y[ܙX\YY[]ܞH\\H\]Z\[[ܙH[]]H[[X]H[[]X[Y]ˈ\][\YHY\[[]\[HBYۚYX[^\H]H܈T[H[\[[][ۈ JK][X]H[H\X][ۈ]Y[[[]\[\[BTۘ[][ۜ\HH\H]H][Y[[]X[Y]]X[YHT[[X[\[H[\]\XYH[[\^H[Xܘ[Y[][ۜ[ܝ\[YܛXK\[ HSو\[H[ LSو]\[\KH[[\\\H\ܛYYH\[\]ZYX]ܘ\B^\HQ\[K[XYJH\YH\K\]XY\B[[HX\XY]\ QVUT ML TT\[JK[X]X\H\HXHۙY[HYX\\H HT[Y[ L]وH L[[]\\Y[THY] LΈZY\[ܛ[[\[XXY \K^[Y\XY \K\\[ܛ[[[ۘ]\ TK\Y[ܚ[]Y]B\\ TKYH\[ܛܛ[\[ۘ[ZY\ \K[Y\[ۘ]\ KۙH\[ܛ[[[]H JH[ۙH\[ܛ[[ۚXXY TJK\[[]\Y]\]X[ۈ[Z]YXY[H[]]H\H]XXX[XTT ܙ