|
DDC
| 543.5 | |
Nhan đề
| Sampling of atmospheric Hgo using home-made gold-coated sand sorbent prior to analysis by atomic absorption spectrometry / Nguyen Van Dong, Le Thi Huynh Mai, Truong Minh Tri, Thai Huynh Thuc, Nguyen Thi My, Nguyen Quang Thien, Bui Anh Thuy, Nguyen Thanh Nhan, Nguyen Thi Thanh Ngoc, Dao Huy Hoang | |
Thông tin xuất bản
| Ho Chi Minh city: Nguyen Tat Thanh University, 2019 | |
Mô tả vật lý
| 8 p. | |
Tóm tắt
| Gold-coated sand for amalgamation was synthesized and applied for the determination of mercury in ambient air using a home-made dual gold trap unit coupled to atomic absorption spectrometer. Gold-coated sand is prepared by chemical reduction of Au(III) solution with hydroxylamine depositing elemental gold on acid-etched sand. A home-made dual gold trap unit which focused time-resolved mercury trapped from the sampling/first trap provided an increase in sensitivity and reliability for the analysis of ultra-trace mercury in air was designed and tested. Instrumental detection and quantitation limits (IDL and IQL) of system were 3.9 and 13pg Hg, respectively. Method detection and quantitation limits (MLOD and MLOQ) of system were 0.04 and 0.13ngHg.m-3 for sampling flow rate of 200mL.min-1 and sampling time of 8 hours. Sampling system for gaseous elemental mercury was set up and cooperated with home-made desorption system were preliminarily applied for analysis of atmospheric mercury in samples collected at Hochiminh city University of Science. The atmospheric mercury concentrations were in range of 2.7 – 8.1ng Hg. m-3 which were comparable to Hg concentration found in other cities in the world. | |
Từ khóa tự do
| Air sampling | |
Từ khóa tự do
| Atomic absorption spectrometry | |
Từ khóa tự do
| Dual gold trap | |
Từ khóa tự do
| Gaseous element mercury (GEM) | |
Từ khóa tự do
| Phổ hấp thu nguyên tử | |
Từ khóa tự do
| Thủy ngân nguyên tố | |
Tác giả(bs) CN
| Nguyen, Quang Thien | |
Tác giả(bs) CN
| Nguyen, Thi My | |
Tác giả(bs) CN
| Thai, Huynh Thuc | |
Nguồn trích
| Journal of Science and Technology - NTTU 2019p. 13-20
Số: 06 |
| |
000
| 00000nab#a2200000ui#4500 |
|---|
| 001 | 27843 |
|---|
| 002 | 9 |
|---|
| 004 | 7CBEB6AA-9215-45FB-9F40-B611D3577B76 |
|---|
| 005 | 202104021523 |
|---|
| 008 | 081223s2019 vm| vie |
|---|
| 009 | 1 0 |
|---|
| 039 | |a20210402152351|btainguyendientu|c20210402152328|dtainguyendientu|y20210402114430|ztainguyendientu |
|---|
| 082 | |a543.5 |
|---|
| 245 | |aSampling of atmospheric Hgo using home-made gold-coated sand sorbent prior to analysis by atomic absorption spectrometry / |cNguyen Van Dong, Le Thi Huynh Mai, Truong Minh Tri, Thai Huynh Thuc, Nguyen Thi My, Nguyen Quang Thien, Bui Anh Thuy, Nguyen Thanh Nhan, Nguyen Thi Thanh Ngoc, Dao Huy Hoang |
|---|
| 260 | |aHo Chi Minh city: |bNguyen Tat Thanh University, |c2019 |
|---|
| 300 | |a8 p. |
|---|
| 520 | |aGold-coated sand for amalgamation was synthesized and applied for the determination of mercury in ambient air using a home-made dual gold trap unit coupled to atomic absorption spectrometer. Gold-coated sand is prepared by chemical reduction of Au(III) solution with hydroxylamine depositing elemental gold on acid-etched sand. A home-made dual gold trap unit which focused time-resolved mercury trapped from the sampling/first trap provided an increase in sensitivity and reliability for the analysis of ultra-trace mercury in air was designed and tested. Instrumental detection and quantitation limits (IDL and IQL) of system were 3.9 and 13pg Hg, respectively. Method detection and quantitation limits (MLOD and MLOQ) of system were 0.04 and 0.13ngHg.m-3 for sampling flow rate of 200mL.min-1 and sampling time of 8 hours. Sampling system for gaseous elemental mercury was set up and cooperated with home-made desorption system were preliminarily applied for analysis of atmospheric mercury in samples collected at Hochiminh city University of Science. The atmospheric mercury concentrations were in range of 2.7 – 8.1ng Hg. m-3 which were comparable to Hg concentration found in other cities in the world. |
|---|
| 653 | |aAir sampling |
|---|
| 653 | |aAtomic absorption spectrometry |
|---|
| 653 | |aDual gold trap |
|---|
| 653 | |aGaseous element mercury (GEM) |
|---|
| 653 | |aPhổ hấp thu nguyên tử |
|---|
| 653 | |aThủy ngân nguyên tố |
|---|
| 690 | |aKhoa Công nghệ Hoá học & Thực phẩm |
|---|
| 700 | |aNguyen, Quang Thien |
|---|
| 700 | |aNguyen, Thi My |
|---|
| 700 | |aThai, Huynh Thuc |
|---|
| 773 | |tJournal of Science and Technology - NTTU |d2019|gp. 13-20|x2615-9015|i06 |
|---|
| 890 | |c1|a0|b0|d6 |
|---|
| |
Không tìm thấy biểu ghi nào
|
|
|
|