农业环境科学学报
農業環境科學學報
농업배경과학학보
Journal of Agro-Environment Science
2010年
3期
597-603
,共7页
李威%杨健%陈修报%赵颖%苏彦平%刘洪波
李威%楊健%陳脩報%趙穎%囌彥平%劉洪波
리위%양건%진수보%조영%소언평%류홍파
背角无齿蚌%元素%组织%浓度%负荷量
揹角無齒蚌%元素%組織%濃度%負荷量
배각무치방%원소%조직%농도%부하량
A nodonta woodiana%element%tissue%concentration%burden
利用Agilent 7500ce型电感耦合等离子质谱仪研究了18种元素(Na、Mg、K、Ca、Zn、Mn、Fe、Al、Cu、Cr、C0、Ni、As、Se、Mo、Ag、Tl、Pb)在背角无齿蚌5种组织(外套膜、闭壳肌、足、鳃和内脏团)中的分布特征.结果表明,总体上鳃中元素的浓度最高,内脏团和外套膜次之,足和闭壳肌中较低.Ca、Mn、Mg、Zn、Al、Cu、Ni、As和Se 9种元素浓度均在鳃中最高,Na在外套膜中浓度最高,K在足中浓度最高,Fe和Pb在内脏团中浓度最高.元素负荷量的绝大部分存在于重量较大的鳃和内脏团中,但近50%的Na却积累于外套膜、闭壳肌和足中.背角无齿蚌不同组织或器官对元素的积累具有明显的选择性.
利用Agilent 7500ce型電感耦閤等離子質譜儀研究瞭18種元素(Na、Mg、K、Ca、Zn、Mn、Fe、Al、Cu、Cr、C0、Ni、As、Se、Mo、Ag、Tl、Pb)在揹角無齒蚌5種組織(外套膜、閉殼肌、足、鰓和內髒糰)中的分佈特徵.結果錶明,總體上鰓中元素的濃度最高,內髒糰和外套膜次之,足和閉殼肌中較低.Ca、Mn、Mg、Zn、Al、Cu、Ni、As和Se 9種元素濃度均在鰓中最高,Na在外套膜中濃度最高,K在足中濃度最高,Fe和Pb在內髒糰中濃度最高.元素負荷量的絕大部分存在于重量較大的鰓和內髒糰中,但近50%的Na卻積纍于外套膜、閉殼肌和足中.揹角無齒蚌不同組織或器官對元素的積纍具有明顯的選擇性.
이용Agilent 7500ce형전감우합등리자질보의연구료18충원소(Na、Mg、K、Ca、Zn、Mn、Fe、Al、Cu、Cr、C0、Ni、As、Se、Mo、Ag、Tl、Pb)재배각무치방5충조직(외투막、폐각기、족、새화내장단)중적분포특정.결과표명,총체상새중원소적농도최고,내장단화외투막차지,족화폐각기중교저.Ca、Mn、Mg、Zn、Al、Cu、Ni、As화Se 9충원소농도균재새중최고,Na재외투막중농도최고,K재족중농도최고,Fe화Pb재내장단중농도최고.원소부하량적절대부분존재우중량교대적새화내장단중,단근50%적Na각적루우외투막、폐각기화족중.배각무치방불동조직혹기관대원소적적루구유명현적선택성.
The bioaccumulation of 18 elements (Na,Mg,K,Ca,Zn,Mn,Fe,Al,Cu,Cr,Ni,As,Se,Mo,Ag,Tl,and Pb)were evaluated in the five tissues(mantle,adductor muscle,foot,gill,and visceral mass)of A nodonta woodiana using an Agilent 7500ce inductively coupled plasma mass spectroscopy(ICP-MS).A tissular selective accumulation of certain elements was found in A nodonta woodiana of both concen-tration and burden results in the present study.The greatest concentration of most elements was found in the gills,followed by the visceral mass and mantles,while those in the foot and adductor muscles were relatively low.The highest levels of Ca,Mn,Mg,Zn,Al,Cu,Ni,As,and Se were in the gills;those of Fe and Pb were in the visceral mass,that of Na was in the mantle,and that of K was in the foot,respectively.The gill and visceral mass generally accounted for the largest percentage of the whole soft body element burdens,whereas the mantle,foot and ad-ductor muscle stored ca.50%of the Na burden.