Staining Method
染色方法
Samples are firstly soaked in Nile Red and shined under UV light for microplastics detection, and then soaked in Oralith Brilliant Pink R and shined under UV light for tire wear particles detection. This method is highly accurate and precise to different types of plastics and rubbers.
樣本首先使用尼羅紅染劑 (Nile Red) 進行浸泡，然後在紫外光下照射以檢測微塑膠。同一樣本隨後使用還原桃紅R染劑 (Oralith Brilliant Pink R) 進行浸泡，在紫外線照射後檢測輪胎磨損產生的微塑膠粒。此方法對不同類型的塑膠和橡膠具有高度的準確性和精確性。
1. NR
2. BPR
3. NR > BPR
4. BPR > NR
1L of seawater with samples was filtered and dyed with Nile Red (NR) and Oralith Brilliant Pink Red (BPR).
大約一升的海水經過濾後，用「尼邏紅染劑 (NR)」和「還原桃紅R染劑 (BPR)」把不同的微塑膠粒及車胎染色。
Samples dyed with NR first and then BPR showed the best results of car tire and microplastics.
我們發現先用「尼邏紅染劑 (NR)」, 再用「還原桃紅R染劑 (BPR)」染微塑膠粒及車胎的效果最好。
Result
結果
We went to Tung Chung Pier to collect samples from surface waters and bring back to laboratory for further characterization and analysis. Samples are further confirmed using Fourier-transform Infrared Spectroscopy (FTIR).
較早前，我們於東涌碼頭收集表層水體樣本，並帶回實驗室用傅立葉轉換紅外光譜 (FTIR) 作進一步鑒定和分析。
