姹炴薄鏌擄紝鍥介檯绀句細骞挎硾鍏虫敞

姹炴槸涓€绉嶆湁姣掓€х殑閲嶉噾灞炲厓绱狅紝浼氬浜虹被鍜岀敓鎬佺郴缁熷仴搴烽€犳垚涓ラ噸鍗卞锛岀洰鍓嶅凡鎴愪负鍥介檯绀句細骞挎硾鍏虫敞鐨勭幆澧冩薄鏌撶墿涔嬩竴銆備汉绫诲湪椋熺敤鍚湁瓒呮爣姹炵殑浜у搧鍚庯紝鍙紩璧峰績琛€绠＄郴缁熴€佸厤鐤郴缁熴€佺缁忕郴缁熺瓑鍙楁崯锛屽巻鍙蹭笂涓ラ噸鐨勬睘涓瘨浜嬩欢鍖呮嫭1956骞寸殑鏃ユ湰鐔婃湰鍘挎按淇ｇ梾浜嬩欢銆?971骞翠紛鎷夊厠鍏ㄥ浗鎬ф睘涓瘨浜嬩欢绛夈€傛睘閫氬父浠ヤ笉鍚岀殑褰㈡€?鏃犳満姹炲拰鏈夋満姹?瀛樺湪銆傚叾涓紝鏃犳満姹炲彲閫氳繃鐢熺墿浣撳唴浠ｈ阿鐨勬柟寮忔帓鍑轰綋澶栵紝鑰屾湁鏈烘睘(涓昏涓虹敳鍩烘睘锛屾按淇ｇ梾鐨勭姜榄佺ジ棣?鍒欐槗浜庝笌鏈夋満閰嶄綅浣撳熀鍥㈢粨鍚堬紝瀵艰嚧鍏跺湪鐢熺墿浣撳唴鍒嗚В閫熷害缂撴參锛屾瘨鎬ф洿寮恒€侟/p>

鍥?姹炲舰鎬佺殑杞寲鍙婇€氳繃椋熺墿閾剧殑鎽勫叆

(Poulain, A.J. et al, Science, 2013)

鍦ㄧ敓鎬佺郴缁熶腑锛屾湁鏈烘睘鍏锋湁鐢熺墿瀵岄泦鎬э紝渚嬪锛岄奔鑲変腑姹炵殑鍚噺鍙揪10 mg/kg浠ヤ笂銆備负浜嗕汉绫诲仴搴峰拰鐢熸€佺郴缁熷彲鎸佺画鍙戝睍锛屾湁蹇呰瀵圭幆澧冧腑鐨勬睘褰㈡€佽繘琛岀洃娴嬨€侟/p>

宀涙触搴斿绛栫暐鍙婅В鍐虫柟妗圏/strong>

鐜涓睘鐨勫惈閲忛€氬父姣旇緝浣庯紝濡傜幆澧冩按鏍蜂腑鎬绘睘娴撳害鍦╬g/L-ng/L锛屾睘鐨勫舰鎬佸垎鏋愰渶瑕佸€熷姪楂樼伒鏁忔帰娴嬫柟娉?濡傚喎鍘熷瓙鑽у厜鍏夎氨娉曞拰鐢垫劅鑰﹀悎绛夌瀛愪綋璐ㄨ氨娉?鏉ュ疄鐜般€備负浜嗗簲瀵圭幆澧冩按鏍峰搧涓棔閲忔睘褰㈡€佸垎鏋愮殑鎸戞垬锛屽矝娲ヤ腑鍥藉垱鏂颁腑蹇冧笌涓闄㈢敓鎬佺幆澧冧腑蹇冨悎浣滃紑鍙戜簡涓€濂楀湪绾縎PE-LC-ICPMS鍒嗘瀽绯荤粺锛岀敤浜庢祴瀹氱幆澧冩按鏍峰搧涓殑鐥曢噺姹炲舰鎬併€侟/p>

鍥? 鍦ㄤ腑绉戦櫌鐢熸€佺幆澧冧腑蹇冭繘琛孲PE-LC-ICPMS瀹為獙

璇ョ郴缁熼€氳繃绗竴缁存恫鐩镐笂鐨凷PE鏌卞姘存牱鍝佷腑涓嶅悓褰㈡€佺殑姹炶繘琛屽瘜闆嗭紱鐒跺悗閫氳繃鍏€氶榾鍒囨崲锛屽湪绗簩缁村垎鏋愭煴涓婂畬鎴愪笉鍚屽舰鎬佹睘鐨勫垎绂伙紝骞跺€熷姪楂樼伒鏁廔CPMS锛屽疄鐜颁簡鐨厠閲忕骇姹炲舰鎬佺殑蹇€熴€佺伒鏁忔娴嬨€傚矝娲ヤ腑鍥藉垱鏂颁腑蹇冮€氳繃瀵瑰垎鏋愬弬鏁拌繘涓€姝ヤ紭鍖栵紝浣縎PE-LC-ICPMS鍒嗘瀽绯荤粺瀵圭敳鍩烘睘鐨勬鍑洪檺杈惧埌0.25 pg(杩涙牱閲? mL)锛屼紭浜庣幆淇濇爣鍑嗐€婃按璐 鐑峰熀姹炵殑娴嬪畾 鍚规壂鎹曢泦/鍐峰師瀛愯崸鍏夊厜璋辨硶銆嬩腑鎵€鐢ㄥ垎鏋愭柟娉曠殑妫€娴嬭兘鍔?妫€鍑洪檺0.90 pg锛屾牱鍝侀噺45 mL)銆侟/p>

鍥?. 鐢插熀姹炪€佷簩浠锋睘鍜屼箼鍩烘睘鐨勬爣鏇叉洸绾军/p>

(0.05 鈥 0.8ppt)

娴锋按鏍峰搧涓敳鍩烘睘鐨勬祴瀹欬/strong>

鍒╃敤寤虹珛鐨凷PE-LC-ICPMS鑱旂敤绯荤粺锛屽3涓捣姘存牱鍝?閲囨牱浣嶇疆濡傚浘4鎵€绀?涓殑姹炲舰鎬佽繘琛屼簡鍒嗘瀽銆?涓捣姘存牱鍝佷腑鐢插熀姹炵殑鍚噺鍒嗗埆涓?.096 ng/L銆?.061 ng/L鍜?.058 ng/L锛屼笌鏂囩尞鎶ラ亾鐨勫姞鎷垮ぇ闄勮繎娴锋按涓敳鍩烘睘娴撳害鍊?0.057-0.095 ng/L)銆?銆戙€佹剰澶у埄闄勮繎娴锋按涓敳鍩烘睘娴撳害鍊?0.06-0.13 ng/L)銆?銆戝熀鏈竴鑷达紝琛ㄦ槑鏈柟娉曞噯纭€佸彲闈狅紝鍙簲鐢ㄤ簬娴锋按鏍峰搧涓睘褰㈡€佺殑鍒嗘瀽銆侟/p>

鍥? 娴锋按鏍峰搧閲囨牱浣嶇疆

琛? 鏈柟娉?SPE-LC-ICPMS)涓庢爣鍑嗗垎鏋愭柟娉旤/p>

鍒嗘瀽鎬ц兘姣旇緝

鏂规硶路鐗圭偣

鍒嗘瀽鍏ㄨ嚜鍔ㄥ寲鎿嶄綔锛氱幆澧冩按鏍凤紝鍦ㄧ嚎SPE瀵岄泦銆佸垎绂汇€佽川璋辨娴嬬畝鍗曘€佸揩閫熷垎鏋愶細鍓嶅鐞嗙畝鍗曡繃婊わ紝鍏ㄩ儴鍒嗘瀽鍙湪15 min鍐呭畬鎴愰珮鐏垫晱鍒嗘瀽锛氱兎鍩烘睘銆佷簩浠锋睘鍚屾椂妫€娴嬶紝鐢插熀姹炴鍑洪檺0.25 pg楂樼洂搴︽捣姘存牱鍝佸垎鏋愶細鍙洿鎺ヨ繘鏍峰垎鏋愮洂搴︿负35鈥扮殑娴锋按鏍峰搧

灏忕粨

宀涙触涓浗鍒涙柊涓績涓庝腑绉戦櫌鐢熸€佺幆澧冧腑蹇冨悎浣滃紑鍙戜簡鍦ㄧ嚎SPE-LC-ICPMS鑱旂敤绯荤粺锛屽疄鐜颁簡鐜姘存牱涓秴鐥曢噺姹炲舰鎬佺殑鍑嗙‘銆佸揩閫熷垎鏋愩€傚垎鏋愭柟娉曞鐢插熀姹炵殑妫€鍑洪檺涓?.25 pg锛屼紭浜庡浗瀹舵爣鍑嗕腑鎺ㄨ崘鏂规硶鐨勬鍑洪檺锛岃揪鍒板浗闄呴鍏堟按骞炽€傜畝鍗曘€佸揩閫熴€佺伒鏁忕殑姹炲舰鎬佸垎鏋愯兘鍔涳紝浣挎湰鏂规硶鍦ㄥ父瑙勬娴嬪強搴旀€ュ搷搴斿満鏅笅鍏锋湁骞块様鐨勫簲鐢ㄥ墠鏅紝鍦ㄧ幆澧冩按鏍?鐢熸椿楗敤姘淬€佸湴琛ㄦ按銆佹捣姘寸瓑)妫€娴嬪拰椋熷搧瀹夊叏鍙婃娴嬩腑灏嗗彂鎸ラ噸瑕佷綔鐢ㄣ€侟/p>

鍙傝€冩枃鐚細

1. Vincent L. ST. Louis锛孒olger Hintelmann, Jennifer A. Graydon, Jane L. Kirk, Joel Barker, Brian Dimock, Martin J. Sharp, Igor Lehnherr, Environ. Sci. Technol. 2007, 41, 6433-6441.

2. W.R.L. Cairns, M. Ranaldo, R. Hennebelle, C. Turetta, G. Capodaglio, C.F. Ferrari, A. Dommergue, P. Cescon, C. Barbante, Analytica. Chimica. Acta, 2008, 622, 62-69.