Nguyen Thanh Nho

Spatiotemporal distribution and ecological risks of metals in fluvial bottom sediments impacted by anthropogenic activities: a case study in Ho Chi Minh City, Vietnam

Le Quang-Huy, Nguyen Cong-Hau, Le-Thi Huynh-Mai, Truong Van-Vinh et autres

Rivers and canals are the main networks in urban areas that receive waste involving metal-containing substances from anthropogenic activities. After entering the water column, the distribution of metals depends on hydrological conditions and seasonal changes. The present study determined the available and …

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Effects of fish stocking density on water quality and the growth of red tilapia and vegetables in microalgae-aquaponic systems

Co Thi Kinh, Nguyen Thanh Nho, Thi-Dieu-Hien Vo, Lê Quang Huy et autres

This study investigates the impact of fish stocking density on water quality, red tilapia (Oreochromis sp.) growth, and mustard green (Brassica integrifolia) growth in microalgae-aquaponics systems. Three densities were tested: D1 (90 fish/m³), D2 (70 fish/m³), and D3 (50 fish/m³). Water quality …

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INFLUENCE OF SHORT-TERM pH FLUCTUATIONS ON NITROUS OXIDE EMISSIONS IN A SEQUENCING BATCH REACTOR FOR PARTIAL NITRIFICATION

Cô Thị Kính, Nguyen Thanh Nho, Lê Quang Huy, Trà Văn Tung et autres

Nghiên cứu này nhằm đánh giá ảnh hưởng của sự dao động pH ngắn hạn lên lượng phát thải khí nitơ oxit (N₂O) trong một bể bùn hoạt tính theo dạng mẻ thực hiện quá trình nitrat hóa bán phần. Mặc dù …

INVESTIGATING ON CONDITIONS OF WASTEWATER AND SEDIMENT SAMPLE PREPARATIONS FOR SELENIUM DETERMINATION USING HG-AAS

Lê Thành Long, Lê Quang Huy, Taicheng An, Nguyễn Thị Thanh Tuyền et autres

Phân tích selen (Se) trong các mẫu môi trường thường bị hạn chế do độ nhạy của thiết bị, mất và nhiễm bẩn chất phân tích trong quá trình xử lý và bảo quản mẫu. Mục đích của nghiên cứu này là …

Changes in the total phenolic contents, chlorogenic acid, and caffeine of coffee cups regarding different brewing methods

Le-Thi Anh-Dao, T. Chi-Thien, Nguyen Nhut-Truong, Tran Tu-Chi et autres

Coffee is among the most popular beverages consumed worldwide due to its taste, flavor, and alertness effects on drinkers. Besides, caffeine and chlorogenic acid are known as featured compounds of coffee, and there are various phenolic compounds, that demonstrate many benefits for …

An optimized smartphone-based colorimetric detection method for evaluating the fluoride released in tea extracts from different brewing conditions

Le-Thi Anh-Dao, Do Minh-Huy, Nguyen Thu-Huong, Vo-Thi Tuong-Thu et autres

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DISTRIBUTION AND GEOCHEMISTRY OF LEAD IN TIDAL CREEK SEDIMENT IMPACTED BY ANTHROPOGENIC ACTIVITIES

Lê Quang Huy, Tô Thị Hồng Chuyên, Nguyễn Văn Đông, Nguyen Thanh Nho

Các cửa sông có rừng ngập mặn đóng vai trò quan trọng giảm thiểu chất ô nhiễm từ đất liền ra biển. Tuy nhiên, những thay đổi về tính chất hóa lý của nước và trầm tích có thể ảnh hưởng đến …

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Determination of Caffeine, Chlorogenic Acid, Total Phenolic Contents, and Antioxidant Capacities for Arabica and Robusta Coffee from Vietnam

Le-Thi Anh-Dao, Do Minh-Huy, Tran Bui-Phuc, Nguyen Nhut-Truong et autres

In Vietnam, the cultivation and production of coffee have been expanding over the past few decades and are known as an important part of the national economy. However, the scientific data regarding the internal compositions of coffee have still been limited, especially …

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Spatial Variation of Rare Earth Elements (REEs) in Agricultural Soils Collected from Different Geographical Regions in Vietnam

Le Quang-Huy, To Thi Hong-Chuyen, Nguyen Thanh Nho, Le-Thi Huynh-Mai et autres

Rare earth elements (REEs) exist commonly in minerals, such as carbonates, silicates, fluorides, and phosphates. REEs are also found in coals, animals, algae, and plants which were proven to increase the growth, development, yield, and quality of crops. In the present study, …

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Assessment of selenium content in tropical fish species using hydride generation atomic absorption spectrometry

Nguyen Thanh Nho, Le-Thi Anh-Dao, Le Quang-Huy, Le-Thi Huynh-Mai et autres

The present work aimed to investigate the chemical sides in hydride generation atomic absorption spectrometry (HG-AAS) (i.e., a simple, low-cost, and sensitive approach) for selenium (Se) analysis in fish samples, and to assess the Se content in different tropical fish species. The …

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A portable colorimetric tool using a smartphone camera applied for determining total phenolic contents in coffee products

Le-Thi Anh-Dao, Nguyen Thanh Nho, Bui HUU-TRUNG, Thach UT DONG et autres

In the present study, a self-designed colorimetric box equipped with a smartphone as an emerging analytical approach was designed to determine the total phenolic contents (TPCs) in coffee. The formed blue complex between the phenolic compounds and Folin-Ciocalteu reagent was measured its …

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Smartphone-based digital images as a low-cost and simple colorimetric approach for the assessment of total phenolic contents in several specific Vietnamese dried tea products and their liquors

Do Minh-Huy, Le-Thi Anh-Dao, Nguyen Thanh Nho, Le Nhon-Duc et autres

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