高效液相色谱法测定水体中的苯甲酰脲类杀虫剂残留量(2010年)资源-CSDN文库

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第

32

卷第

l

期

南京工业大学学报(自然科学版)

2010

年

l

月

JOURNAL

OF

NANJING

UNIVERSITY

OF

TECHNOLOGY

(Natural Science Edition)

doi:IO.3969/j. issn.1671

-7627.2010.0

1.

021

Vo

l.

32

No.

1

Jan.

2010

高效液相色谱法测定水体中的苯甲酷服类杀虫剂残留量

刘世勤，李方实

(南京工业大学理学院，江苏南京

210009)

摘

要:建立了用高效液相色谱测定:水体中

6

种苯甲航豚类杀虫剂(

I

除虫脉、灭幼脉、杀铃豚、氟铃月尿、虱精脉和氟

苯豚)残留量的方法水样采用液液萃耳叉，以二氯甲炕为提取剂色谱分析条件:

Kromasil

-

100

- 5 C

IS

色谱柱

(250

mm

x4. 6

mm

，粒径

5μm)

，流动相

V(

甲醇):

V(

水)

=

80:

20

，流速为1.

0

mUmin

，柱温为室温，紫外检测波长为

260

nm.

杀虫剂的质量浓度在1.

0 -

20μglmL

范围内与色谱峰面积的线性关系良好，相关系数

R'

=

O.

9974 -

1.

000

0

，检测限为

0.09-0.26μglm

L.在蒸饱水和湖水中，

6

种杀虫剂

3

个添加浓度水平的平均回收率分别为

79.629

毛

-95.289

毛和

75.03%

- 98.06%

，相对标准偏差分别为

O.

94% - 1

1.

04%

和

0.60%

-

12.569

合，该方法可用

于环境水样中苯甲耽豚类杀虫剂的残留量检测分析

关键词:高效液相色谱法;苯甲耽脉;水样;残留分析

中图分类号:

X830.2

文献标志码

:A

文章编号:

1671

-7627(2010)01

-0102

-04

Determination

of

benzoylurea pesticide residues

in

water

by

high

performance

liquid

chromatography

LIU

Shi-qin

,

LI

Fang-shi

(College

o[

S

c:

iences ,

Nanjing

University

of

Technology

,

Nanjing

210009 , China)

Abstract:

A

quantitative

high

perfo

创

rrr

、

Iη'mance

liqui

址【

d

chror

口

m

丑

latωog

♂

raphic

method

using

U

飞

v

【

det

忧

ector

was

devel-

oped

fo

创

r

t

仙

he

dete

臼

rτm

tn

让

iflumuron

，

hexaflumuron , lufenuron ,

and

teflubenzuron)

in

the

environmental

aquatic

systems. Benzoy-

lurea

pesticides

were extractecl by liquid-liquicl partition from water

samples

into clichloromethane. A Kro-

masil-l00-5

C

I8

stainless

steel

column

(250

mm x 4. 6 mm ,

5μm)

was usecl by using the mixture

of

methanol-water

(80:

20)

as the mobile

phase

at a flow rate

of

1.

0 m

Ll

min.

The

column was

kept

at room

temperature.

The

ultraviolet cletection wavelength was

260

nm.

The

calibration

curves for the

pesticides

were in

goocl

linearity in

the

concentration

range of

1.

0 -

20μg/mL

with the

linear

correlations

R

2

=

0.9974

-

1.

000

O.

The

cletection limits were

0.09

-

O.

26μg/

m

L.

The

average recoveries

of

three

spiked

concentration levels for the six

pesticides

in

pure

water ancl

lake

water were 79.

629

毛-

95.289

毛

and

75.03%

-

98.06%.

The

relative standarcl deviations were

0.94%

- 1

1.

04%

ancl

0.60%

-

12.569

毛.

The

method was

used

to

the resiclue

detection

and

analysis of benzoylurea

pesticides

in

aquatic

systems.

Key

words:

HPLC;

benzoylurea

pesticides;

water;

resiclue analysis

收稿日期:

2009

-

09

-

28

作者简介:文

11111

助

(1980-) ，女，

iUJ;FfW

人，倾

1'1.

，

+V

iiJf究力

lí'J')

-J环境分析化'于;乍

h

实(联系人)咱教叹，

1

己-川

il

:

fang

,

hi.

li@

叩l.

edu.

C

I1

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