Sains Malaysiana 37(4):
323-330(2008)
Pengambilan Logam Berat oleh Terung Pipit (Solanum torvum)
dalam Tanih Ultrabes di Kuala Pilah, Negeri Sembilan
(Heavy Metals Uptake by Terung Pipit (Solanum torvum) in Ultrabasic
Soil at Kuala Pilah, Negeri Sembilan)
A.R. Sahibin., I. Wan Mohd. Razi., A.R. Zulfahmi.,
L. Tukimat.,
G. Muhd Barzani., H.A. Jumaat & H.K.
Low
Pusat Pengajian Sains Sekitaran
dan Sumber Alam
Fakulti Sains dan Teknologi
Universiti Kebangsaan Malaysia
43600 Bangi, Selangor, Malaysia
Diserahkan: 29 Januari 2008 / Diterima:
26 Mac 2008
ABSTRACT
This study was carried out at an ultrabasic area, Selaru and Felda
Rokan Barat, Kuala Pilah, Negeri Sembilan. Eighteen samples of plant
and its substrates were collected for determination of heavy metal
contents such as Ni, Co, Cr, Mn and Fe in soils and plants. The
plants were separated into different portion such as root, stem
and leaf and extracted for their heavy metal content by wet digestion
method whereas the soils heavy metal available and resistant content
were extracted by sequential extraction. Heavy metals content in
soil and plant extract was determined using Flame Atomic Absorption
Spectrophotometer. The result showed that total content of heavy
metals for Ni, Cr, Co, Mn and Fe was at 84.13 - 740.36 mg/kg, 23.51
- 135.53 mg/kg, 188.23 - 848.92 mg/kg, 245.00 - 545.33 mg/kg and
1176.77 - 1243.90 mg/kg, respectively. Bio-available heavy metals
content in soil is at 0.09-6.32 mg/kg for Ni, 0-0.51 mg/kg for Co,
0 mg/kg for Cr, 7.78-21.07 mg/kg for Mn and 2.23-4.47 mg/kg for
Fe. Based on BAC, Mn and Fe were detected to have a high concentration
in plant parts compared to other heavy metals.
Keyword: Heavy metal; plant uptake; terung pipit (Solanum torvum),
Kuala Pilah; ultrabasic soil
ABSTRAK
Kajian ini dijalankan di kawasan tanih ultrabes di Selaru dan Felda
Rokan Barat, Kuala Pilah, Negeri Sembilan. Sebanyak lapan belas
sampel tumbuhan dan substratnya telah diambil bagi menentukan kandungan
logam berat Ni, Co, Cr, Mn dan Fe di dalam tanih dan tumbuhan. Tiga
bahagian tumbuhan iaitu akar, batang dan daun telah dianalisis secara
penghadaman basah manakala tanih pula telah dianalisis kandungan
logam berat tersedia dan jumlah dengan kaedah pengekstrakan berjujukan.
Kandungan logam berat di dalam larutan ekstrak tanih dan tumbuhan
ditentukan menggunakan Spektrofotometer Serapan Atom Nyalaan. Hasil kajian menunjukkan kandungan jumlah logam
berat Ni, Cr, Co, Mn and Fe dalam tanih masing-masing adalah 84.13-740.36
mg/kg bagi Ni, 23.51-135.53 mg/kg bagi Co, 188.23-848.92 mg/kg bagi
Cr, 245.00-545.33 mg/kg bagi Co dan 1176.77-1243.90 mg/g bagi Fe.
Kandungan kebiodapatan logam berat dalam tanih adalah 0.09-6.32
mg/kg bagi Ni, 0-0.51 mg/kg bagi Co, 0 mg/kg bagi Cr, 7.78-21.07
mg/kg bagi Mn dan 2.23-4.47 mg/kg bagi Fe. Berdasarkan BAC, Mn dan
Fe adalah logam yang banyak dikesan di dalam bahagian tumbuhan berbanding
dengan logam lain.
Kata kunci: Logam berat; pengambilan tumbuhan; tanih ultrabes; terung
pipit (Solanum torvum), Kuala Pilah
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