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CONSTIX®;SC-4 純棉棉簽具有雙頭和硬質尖頭。4 由高品質長絨棉製成,兩端緊密包裹並在高強度卷紙手柄上固定。使用甲基纖維素粘合劑將頭固定在手柄上。這些棉簽是 Contec 進口的 Sanyo Huby品牌棉簽。
高品質棉纖維對大多數溶劑和溶液具有出色的吸附能力。棉簽頭使用甲基纖維素粘合劑緊緊包裹和定型,這最大限度地減少了纖維脫落,同時保持了較低的可提取殘留物水平。SC 系列棉簽可吸收大多數常見溶劑,包括異丙醇和丙酮,非常適合與水基溶液一起使用。