Ϊȷ��̫�����������׵ĸ�����̬����������Ӧ��SMT ������ȡ����̫��÷�������������Ʒ�͵�ˮ�������׼����BC�� --684 ���׵ĸ�����̬���вⶨ���������SMT ������һ���������Ժ�׼ȷ�ԡ�̫��������������̬�ⶨ��������޻�����̫�����������׵���Ҫ������̬��ռ����Ч�׵� 59. 22%���޻��׺����з��׻�ʯ̬�׺���Ϊ139 μg /g�������׻�ʯ̬�׺���113 μg /g��

The SMT sequential extraction method was applied in morphometry of phosphorus contained in surface sediment samples and freshwater sediment reference material BC��-684 in Taihu Meiliang Bay�� The results show that the SMT method is applicable and accurate for this experiment�� Inorganic phosphorus is the main form of phosphrus in the sediment of Taihu Lake��up to 59. 22% in all�� The content of NaOH-P is the main form in inorganic phosphorus��which is 139μg /g��while the HCl-P is 113μg /g��